Godan verb, intransitive verb

  1. to rot, to go bad, to decay, to spoil, to fester, to decompose, to turn sour (e.g. milk).
  2. to corrode, to weather, to crumble.
  3. to become useless, to blunt, to weaken (from lack of practice).
  4. to become depraved, to be degenerate, to be morally bankrupt, to be corrupt.
  5. to be depressed, to be dispirited, to feel discouraged, to feel down.

auxiliary verb, Godan verb

Kansai-ben. Usually written with kana alone. After the -masu stem of a verb; indicates scorn or disdain for another's action.
  1. to have the audacity to, to be bastard enough to.

Godan verb, intransitive verb

Archaism.
  1. to lose a bet.
  2. to be drenched, to become sopping wet.

Variations

Pronunciation Kanji Kana Is Common
 
腐る くさる

Contained Kanji Breakdown

rot, decay, sour
くさ.る フ (7th, N1)
borough, urban prefecture, govt office
フ い う (4th, N2)
dotted cliff radical (no. 53)
ゲン (Kentei 1)
wild goose, trailing cliff radical (no. 27)
カン かりがね (Kentei 1)
adhere, attach, refer to
つ.ける フ -づけ (4th, N3)
human radical (no. 9)
measurement, tenth of a shaku, a little
スン す みき (6th, N1)
meat
ニク しし (2nd, N4)
inside, within, between
ナイ うち ダイ (2nd, N3)
upside-down box radical (no. 13)
キョウ ケイ (Kentei 1)
person
ひと ニン ジン (1st, N5)