Where does “indolence” come from?

indolence (Middle French) comes from Latin indolentia, from Latin dolēns, from Latin doleō, from Proto-Italic doleō, from Proto-Indo-European dolh₁éyeti, from Proto-Indo-European delh₁- — to split, divide.

Ancestry of “indolence”, step by step

StepLanguageWordMeaning
1Latinindolentiafreedom from pain, insensibility;...
2Latindolēnshurting, suffering
3Latindoleōto hurt, suffer (physical pain)
4Proto-Italicdoleōhurt, cause pain
5Proto-Indo-Europeandolh₁éyetidivide
6Proto-Indo-Europeandelh₁-to split, divide

Words derived from “indolence

Every word from Proto-Indo-European delh₁-Every word from Proto-Indo-European dolh₁éyetiEvery word from Proto-Italic doleō