411 REFERENCE · Wiktionary
-구-
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
구 -구
Korean
Suffix
Derives certain causative verbs. No longer productive.
ko -이- -히- -리- -기- -우- -추-
ko y 달다 -구- 달구다 of metal to become heated to heat (metal)
Usage notes
Although still very common in Korean, the causative/passive suffixes are no longer productive for forming new verbs. Verbs that do not already have a morphological causative or passive must employ auxiliaries:
ko -게 하다 for causatives
ko -어지다 for passives