くちる

Japanese

Alternative spelling
朽ちる

Etymology

From earlier upper bigrade verb くつ (kutsu).

Development

Natural progression from Old and Classical Japanese 上(かみ)二(に)段(だん)活(かつ)用(よう) (kami nidan katsuyō, “upper bigrade conjugation”) verbs ending in -u to modern Japanese 上(かみ)一(いち)段(だん)活(かつ)用(よう) (kami ichidan katsuyō, “upper monograde conjugation”) verbs ending in -iru. For the Old / Classical form, see the くつ entry.

Pronunciation

(Tokyo) くちる [kùchíꜜrù] (Nakadaka – [2])
IPA^(key): [kɯ̟t͡ɕiɾɯ̟]

Verb

Japanese verb pair
active	くたす
mediopassive	くちる

くちる • (kuchiru) intransitive ichidan (stem くち (kuchi), past くちた (kuchita))

to rot, decay
(figurative) to die

Conjugation

Conjugation of "くちる" (See Appendix:Japanese verbs)
Katsuyōkei ("stem forms")
Mizenkei ("imperfective")	くち	kuchi
Ren’yōkei ("continuative")	くち	kuchi
Shūshikei ("terminal")	くちる	kuchiru
Rentaikei ("attributive")	くちる	kuchiru
Kateikei ("hypothetical")	くちれ	kuchire
Meireikei ("imperative")	くちよ¹ くちろ²	kuchiyo¹ kuchiro²
Key constructions
Passive	くちられる	kuchirareru
Causative	くちさせるくちさす	kuchisaseru kuchisasu
Potential	くちられるくちれる³	kuchirareru kuchireru³
Volitional	くちよう	kuchiyō
Negative	くちないくちぬくちん	kuchinai kuchinu kuchin
Negative continuative	くちず	kuchizu
Formal	くちます	kuchimasu
Perfective	くちた	kuchita
Conjunctive	くちて	kuchite
Hypothetical conditional	くちれば	kuchireba

¹ Written imperative
² Spoken imperative
³ Colloquial potential

Synonyms

(rot): 腐(くさ)る (kusaru)

Derived terms

蛇(くちなわ) (kuchinawa)

Related terms

朽(く)たす (kutasu)