Where does “rainso” come from?

rainso (Vulgar Latin) comes from Frankish hrainisōn, from Proto-Germanic hrainisōną, from Proto-Germanic hrainiz, from Proto-Indo-European króy-n-is, from Proto-Indo-European krey- — to sift, separate, divide.

Ancestry of “rainso”, step by step

StepLanguageWordMeaning
1Frankishhrainisōnto clean, rinse; to clean, to cleanse, to purify
2Proto-Germanichrainisōnąto clean, cleanse, purify
3Proto-Germanichrainizclean, not dirty; pure; innocent
4Proto-Indo-Europeankróy-n-is
5Proto-Indo-Europeankrey-to sift, separate, divide

Words derived from “rainso

Every word from Proto-Indo-European krey-Every word from Proto-Indo-European króy-n-isEvery word from Proto-Germanic hrainiz