-eskar

Borrowed from Latin -ēscere. Was probably adopted before Progreso, probably through Idiom Neutral -eskar.

• IPA^(key): /ɛsˈkar/

-eskar

1. (with a verbal root) begin to, start

   ‎sidar (“to sit; be sitting”) + ‎-eskar → ‎sideskar (“sit down, take a seat”)

2. (with an adjectival root) become, get

   ‎richa (“rich”) + ‎-eskar → ‎richeskar (“to become rich”)

In early Ido (until the late 1910s) this suffix was used after verbal roots to form a verb with exclusively an inchoative active meaning.

• (archaic) -ijar