didyn

didis (“large”) +‎ -yn (“forms adverbs indicating a change toward a condition”)

didyn

1. up in size; becoming larger

   Antonym: mažyn

   • 1919 July 30, Draugas‎^[1], volume 4, number 178, Chicago:

     Riaušes Chicagoje eina didyn

     The riots in Chicago are on the rise [getting bigger]