1. to rot, to go bad, to decay, to spoil, to fester, to decompose, to turn sour (e.g. milk)

Godan verb with 'ru' ending intransitive verb

2. to corrode, to weather, to crumble

Godan verb with 'ru' ending intransitive verb

3. to become useless, to blunt, to weaken (from lack of practice)

intransitive verb Godan verb with 'ru' ending

4. to become depraved, to be degenerate, to be morally bankrupt, to be corrupt

Godan verb with 'ru' ending intransitive verb

5. to be depressed, to be dispirited, to feel discouraged, to feel down

intransitive verb Godan verb with 'ru' ending

6. to have the audacity to, to be bastard enough to

Godan verb with 'ru' ending auxiliary verb word usually written using kana alone

7. to lose a bet

intransitive verb Godan verb with 'ru' ending archaic

8. to be drenched, to become sopping wet

Godan verb with 'ru' ending intransitive verb archaic