indolence

Borrowed from Middle French indolence, or from its etymon Latin indolentia (“freedom from pain; insensibility”), from in- (prefix meaning ‘not’) + dolēns (“hurting, suffering; grieving, lamenting”) + -ia (suffix forming feminine abstract nouns). Dolēns is the present participle of doleō (“to hurt, suffer; to be sorry, deplore, grieve for, lament”), ultimately from Proto-Indo-European *delh₁- (“to divide, split”).