-ko

• -eko (after consonants)
• -go (see usage notes)

Unknown.^[1]

• IPA^(key): /ko/, [ko̞]

-ko

1. Locative singular suffix.

   ‎etxe (“house”) + ‎-ko → ‎etxeko (“of the house, related to the house”)

2. Noun-forming suffix with various functions.
   1. related to, near

      ‎gerri (“waist”) + ‎-ko → ‎gerriko (“belt”)

      ‎belarri (“ear”) + ‎-ko → ‎belarritako (“earring”)

   2. Forms words expressing a hit or strike
3. Forms future participles.

   ‎egin (“to do”) + ‎-ko → ‎egingo (“will do”)

• The case formed by this suffix is also called "local genitive" or "locative genitive". It roughly corresponds to the usage of the prepositions of in English and de in Spanish. The genitive case (formed by the suffix -ren) also corresponds generally to these prepositions; but is mostly used to imply ownership, while the locative implies location or relatedness. However, there are exceptions to this general rule, see the usage examples below.

  Bizkaiko mendiak ― the mountains of Biscay

  buruko mina ― headache (literally, “pain in the head”)

  eskolako jaialdia ― school festival

  Picassoren margolan bat ― a painting by Picasso

  Ilargiaren orbita ― the orbit of the Moon

  mutilaren argazkia ― the picture of (owned by) the boy; the picture of (showing) the boy

• Common nouns ending in a consonant take the form -eko with an epenthetic vowel.

  ‎hondartz (“beach”) + ‎-ko → ‎hondartzeko (“of the beach”).

• Proper nouns and verbs ending /n/ or /l/ take the voiced form -go.

  ‎Madril (“Madrid”) + ‎-ko → ‎Madrilgo (“of Madrid”).

Basque inflectional suffixes
		indefinite	singular	plural	proximal plural
absolutive		-∅	-a	-ak	-ok
ergative		-(e)k	-ak	-ek
dative		-(r)i	-ari	-ei	-oi
genitive		-(r)en	-aren	-en	-on
comitative		-(r)ekin	-arekin	-ekin	-okin
causative		-(r)engatik	-arengatik	-engatik	-ongatik
benefactive		-(r)entzat	-arentzat	-entzat	-ontzat
instrumental		-(e)z	-az	-ez	-oz
inessive	anim.	-(r)engan	-arengan	-engan	-ongan
	inanim.	-(e)tan	-an	-etan	-otan
locative	anim.	―	―	―	―
	inanim.	-(e)tako	-(e)ko	-etako	-otako
allative	anim.	-(r)engana	-arengana	-engana	-ongana
	inanim.	-(e)tara	-(e)ra	-etara	-otara
terminative	anim.	-(r)enganaino	-arenganaino	-enganaino	-onganaino
	inanim.	-(e)taraino	-(e)raino	-etaraino	-otaraino
directive	anim.	-(r)enganantz	-arenganantz	-enganantz	-onganantz
	inanim.	-(e)tarantz	-(e)rantz	-etarantz	-otarantz
destinative	anim.	-(r)enganako	-arenganako	-enganako	-onganako
	inanim.	-(e)tarako	-(e)rako	-etarako	-otarako
ablative	anim.	-(r)engandik	-arengandik	-engandik	-ongandik
	inanim.	-(e)tatik	-(e)tik	-etik	-otik
partitive		-(r)ik	―	―	―
prolative		-tzat	―	―	―

• IPA^(key): [ ko]

-ko n (noun-forming suffix)

1. forms diminutive nouns

   ‎ef + ‎-ko → ‎efko

   ‎oko + ‎-ko → ‎očko

   ‎zrno + ‎-ko → ‎zrnko

• -átko
• -čko
• -íčko

• -ko in Slovník afixů užívaných v češtině, 2017

From Proto-Finnic *-ko, probably ultimately from Proto-Uralic *ko-.

-ko (front vowel harmony variant -kö, linguistic notation -kO) (enclitic particle)

1. (enclitic) Turns a clause interrogative. It is appended to the element of the clause that is questioned most. English equivalents include the normal ways of forming an interrogative statement without using an interrogative pronoun, such as the verb "do", inversion of the word order and intonation.

   Onko hän täällä? (on > + -ko)

   Is s/he here?

   Täälläkö hän on? (täällä + -kö)

   Is s/he here?

   Tuleeko hän laivalla? (tulee > + -ko)

   Is she coming by the ship?

   Millä sitten - veneelläkö? (veneellä + -kö)

   By what, then - on the boat?

   Näkeekö hän? (näkee > + -kö)

   Does s/he see?

   Pitäisikö hänen tulla tänne? (pitäisi > + -kö)

   Should s/he come here?

2. (enclitic) In indirect questions, -ko/-kö appended to the verb corresponds to the conjunctions if and whether in English.

   En tiedä, tuleeko hän.

   I don't know if she comes.

   En tiedä, näkeekö hän.

   I don't know if she sees.

3. (enclitic) With the particle -han/-hän attached to the topic of discussion, it expresses "I wonder if".

   Pukeutuikohan hän tarpeeksi lämpimästi tänä aamuna?

   I wonder if he put enough clothes on this morning.

   Meniköhän hän kouluun tänä aamuna?

   I wonder if he went to school this morning.

4. (enclitic) With the negative verb (en, et, ei, emme, ette, eivät) and the particle -han/-hän, expresses "I suppose".

   Emmeköhän me jotenkuten tule toimeen.

   I suppose we'll get by somehow.

5. (enclitic, colloquial) In a question with an interrogative word.

   Olikko millon tulossa käymään?

   When are you coming by here?

• (interrogative particle): The particle -ko/-kö is used when there is no other interrogative word, in both direct and indirect questions. The answer is expected to be simply affirmative or negative.
• (interrogative particle): The word with this particle will usually move to the beginning of the clause (see the usage examples).
• (I wonder if): Note that, unlike in English, the sentence meaning "I wonder if" is an interrogative sentence in Finnish, so it ends with a question mark.

• -ks (colloquial)

• -kin
• -kaan/-kään
• -han/-hän
• -kö
• -pa/-pä
• -s

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

-ko

1. (inflectional suffix) forms the accusative case

• -ni (“forms genitive”)
• -na (“forms dative”)
• -chi (“forms instrumental”)
• -no (“forms locative”)

• IPA^(key): /ko/

-ko

1. a feminine singular suffix (often used with a collective sense)

• -hako

• -k — before vowels and suffixes -en and -an

From Proto-Malayo-Polynesian *ku, from Proto-Austronesian *ku.

• IPA^(key): /ko/, /ku/

-ko

1. First-person singular ergative enclitic pronoun; I

   Inlukatko ti tawa ta napudot. ― I opened the window because it is hot.

   Aramidekto dayta no bigat. ― I'll do that tomorrow.

2. First-person singular possessive marker; my

   Daytoy ti pamiliak. ― This is my family.

   Annakko dagitoy. ― These are my children.

• When attached to verbs ending with the suffixes -en or -an, the n of the suffix is dropped and the enclitic (in the form -k) is attached.

  ‎lutuen (“to cook”) + ‎-k(o) → ‎lutuek (“I cook”)

  ‎dalusan (“to clean”) + ‎-k(o) → ‎dalusak (“I clean”)

• When attached to the enclitic -(e)n, the pronoun becomes -kon, even if the enclitic is in the form -k.

  Linutok ti ikan. ― I cooked the fish.

  Linutokon ti ikan. ― I already cooked the fish.

• When attached to the negative adverb di, the pronoun becomes -ak.

  Diak inggagara. ― I did not mean it.

• When attached to the verb in (“to go”), the n geminates, and the pronoun becomes -ak.

  Innak kitaen no addadan. ― I'll go check if they are already there.

• (Ala-Laukaa) IPA^(key): /-ko/, [-ko̞]
• (Soikkola) IPA^(key): /-ko/, [-ko̞]

-ko (front-vowel variant -kö)

1. Alternative form of -k
   • 1936, D. I. Efimov, Lukukirja: Inkeroisia alkușkouluja vart (ensimäine osa), Leningrad: Riikin Ucebno-pedagogiceskoi Izdateljstva, page 12:

     Töö-ko meille avita.

     Come help us.

• Ruben E. Nirvi (1971) Inkeroismurteiden Sanakirja, Helsinki: Suomalais-Ugrilainen Seura, page 178

From Proto-Slavic *-ъko.

-ko n

1. added to neuter nouns to form a diminutive

From Proto-Malayo-Polynesian *(i-)kahu, Proto-Austronesian *(i-)kaSu.

-ko (absolutive enclitic, Lontara spelling ᨀᨚ)

1. you (familiar second person singualr and plural)

• IPA^(key): [-kɔ]

-ko

1. Classifier for objects that give cover.
2. Classifier for spherical containers.

• Katarzyna Izabela Wojtylak (2017) A grammar of Murui (Bue): a Witotoan language of Northwest Amazonia.‎^[1], Townsville: James Cook University press (PhD thesis), pages 195-196

• IPA^(key): /kó/

-kó

1. augmentative suffix; used to form nouns meaning a larger form of something.

   Antonym: -gi

   ‎èsá (“stool”) + ‎-ko → ‎èsákó (“table”)

   ‎yàbà (“banana”) + ‎-ko → ‎yàbàkó (“plantain”)

   ‎ǹdá (“father”) + ‎-ko → ‎ǹdákó (“grandfather”)

   ‎bànban (“river bank”) + ‎-ko → ‎bànbankó (“cliff”)

   ‎tákùn (“rock”) + ‎-ko → ‎tákùnkó (“large rock”)

2. Used to form a nominalised and superlative form of verbs.

   ‎wáncí (“to be large”) + ‎-ko → ‎wáncíkó (“the largest”)

   ‎pàrà (“to be wide”) + ‎-ko → ‎pàràkó (“the widest”)

• Alhaji, Gabra Ibrahim A Morphological Analysis of Nouns and Adjectives In The Nupe Language, 2012

Inherited from Proto-Slavic *-ko.

• IPA^(key): (10^th–15^th CE) /kɔ/
• IPA^(key): (15^th CE) /kɔ/

-ko n

1. diminutive suffix for neuter nouns; may cause various vowel shifts

• Polish: -ko
• Silesian: -ko

• -ka, -ek

Inherited from Old Polish -ko.

• IPA^(key): /kɔ/

• Audio:

  (file)

• Rhymes: -ɔ
• Syllabification: [please specify syllabification manually]

-ko n

1. diminutive suffix for neuter nouns. May cause various vowel shifts

   ‎słowo + ‎-ko → ‎słówko

-ko (Cyrillic spelling -ко)

1. Suffix appended to words to create a masculine noun, most likely to make diminutive. Usually used to make names, or nicknames denoting a negative feature.

   ‎dar + ‎-ko → ‎Darko

   ‎Jano + ‎-ko → ‎Janko

   ‎debeo + ‎-ko → ‎debeljko (“fatty (meant as an insult)”)

• IPA^(key): /kɔ/

-ko n

1. diminutive suffix for neuter nouns

-ko

1. ku class_(XVII) relative marker, where

   Sijui wanakotoka. ― I do not know where they come from.