Where does “Lênin” come from?

Lênin (Portuguese) comes from Russian Ле́нин, from Russian -ин, from Old East Slavic -инъ, from Proto-Slavic -inъ, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “Lênin”, step by step

StepLanguageWordMeaning
1RussianЛе́нинLenin
2Russian-ин-'s
3Old East Slavic-инъ—
4Proto-Slavic-inъ-ine; Creates singulatives, mostly with...
5Proto-Indo-European-iHnosCreates adjectives of materials
6Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European -no- →Every word from Russian -ин →Every word from Russian Ле́нин →