- 1. [v1, vi] to become senile due to illness; to become wasted by illness
Conjugation — Verb (ichidan)
| Dictionary form | やみほうける | (yamihoukeru) |
| Polite | やみほうけます | (yamihoukemasu) |
| Past, plain | やみほうけた | (yamihouketa) |
| Past, polite | やみほうけました | (yamihoukemashita) |
| Negative, plain | やみほうけない | (yamihoukenai) |
| Negative, polite | やみほうけません | (yamihoukemasen) |
| Past negative, plain | やみほうけなかった | (yamihoukenakatta) |
| Past negative, polite | やみほうけませんでした | (yamihoukemasendeshita) |
| Te-form | やみほうけて | (yamihoukete) |
| Potential | やみほうけられる | (yamihoukerareru) |
| Volitional | やみほうけよう | (yamihoukeyou) |
| Conditional (―ba) | やみほうければ | (yamihoukereba) |
| Passive | やみほうけられる | (yamihoukerareru) |
| Causative | やみほうけさせる | (yamihoukesaseru) |
| Imperative | やみほうけろ | (yamihoukero) |