Where does “десятиле́тие” come from?
десятиле́тие (Russian) comes from Russian де́сять, from Old Church Slavonic десѧть, from Proto-Slavic desętь, from Proto-Balto-Slavic *déśimt, from Proto-Indo-European déḱm̥t — ten.
Ancestry of “десятиле́тие”, step by step
Words derived from “десятиле́тие”