Where does “ектенїѧ” come from?

ектенїѧ (Old Church Slavonic) comes from Ancient Greek ἐκτένεια, from Ancient Greek ἐκτενής, from Ancient Greek ἐκτείνω, from Ancient Greek τείνω, from Proto-Hellenic téňňō, from Proto-Indo-European tén-ye-ti, from Proto-Indo-European ten- — to stretch, to extend.

Ancestry of “ектенїѧ”, step by step

StepLanguageWordMeaning
1Ancient Greekἐκτένειαextension
2Ancient Greekἐκτενήςstretched out, strained, outstretched, extended
3Ancient Greekἐκτείνωto stretch out; to prolong, draw out; to lay...
4Ancient Greekτείνωto stretch, extend; to spread; to exert, push to...
5Proto-Hellenictéňňōto stretch
6Proto-Indo-Europeantén-ye-ti
7Proto-Indo-Europeanten-to stretch, to extend

Words derived from “ектенїѧ

Every word from Proto-Indo-European ten-Every word from Proto-Indo-European tén-ye-tiEvery word from Proto-Hellenic téňňō