Where does “Iazul lui Iancu” come from?

Iazul lui Iancu (Romanian) comes from Romanian lui, from Latin illūi, from Latin illī, from Latin ille, from Latin olle, from Proto-Italic *olnos — that.

Ancestry of “Iazul lui Iancu”, step by step

Iazul lui Iancu traces back through 3 separate lines of ancestry.

via Romanian lui

StepLanguageWordMeaning
1Romanianluihis; to him
2Latinillūihim dative singular masculine; apparently also genitive
3Latinillīfound in
4Latinillethat; those; "; demonstrative pronoun "; that...
5LatinolleArchaic form of ille
6Proto-Italic*olnosthat

via Romanian iaz

StepLanguageWordMeaning
1Romanianiazartificial lake made by damming a river
2Old Church Slavonicѣзъ

via Romanian Iancu

StepLanguageWordMeaning
1RomanianIancu
2Serbo-CroatianJanko
Every word from Proto-Italic *olnos