Where does “leissive” come from?

leissive (Old French) comes from Latin lixiva, from Latin lixivus, from Latin -ivus, from Proto-Indo-European -iHwós, from Proto-Indo-European -wós — Creates adjectives from verb stems.

Ancestry of “leissive”, step by step

StepLanguageWordMeaning
1Latinlixivanominative feminine singular of lixīvus;...
2Latinlixivusmade into lye
3Latin-ivusAdjective suffix
4Proto-Indo-European-iHwós—
5Proto-Indo-European-wósCreates adjectives from verb stems
Every word from Proto-Indo-European -wós →Every word from Latin -ivus →Every word from Latin lixivus →