Where does “illei” come from?

illei (Latin) comes from Latin illaei, from Latin illī, from Latin ille, from Latin olle, from Proto-Italic *olnos — that.

Ancestry of “illei”, step by step

StepLanguageWordMeaning
1Latinillaeiher dative singular feminine
2Latinillīfound in
3Latinillethat; those; "; demonstrative pronoun "; that...
4LatinolleArchaic form of ille
5Proto-Italic*olnosthat
Every word from Proto-Italic *olnos →Every word from Latin olle →Every word from Latin ille →