Where does “včera” come from?

včera (Serbo-Croatian) comes from Proto-Slavic vьčera, from Proto-Slavic večerъ, from Proto-Balto-Slavic wékeras, from Proto-Indo-European wekʷsperos.

včera (Serbo-Croatian): yesterday

Definitions

yesterday

Ancestry of “včera”, step by step

Step	Language	Word	Meaning
1	Proto-Slavic	vьčera	yesterday
2	Proto-Slavic	večerъ	evening
3	Proto-Balto-Slavic	wékeras	evening
4	Proto-Indo-European	wekʷsperos	—

Every word from Proto-Indo-European wekʷsperos →

včera — Etymology, Origin & Word History | Etymology Explorer