Where does “г҄еона” come from?

г҄еона (Old Church Slavonic) comes from Ancient Greek γέεννᾰ, from Hebrew גֵּיהִנּוֹם, from Hebrew גַּיא בֶּן הִנֹּם — Valley of Hinnom's Son; Valley of Hinnom's son;...

Ancestry of “г҄еона”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	γέεννᾰ	—
2	Hebrew	גֵּיהִנּוֹם	hell, literally valley of Hinnom
3	Hebrew	גַּיא בֶּן הִנֹּם	Valley of Hinnom's Son; Valley of Hinnom's son;...

Every word from Hebrew גַּיא בֶּן הִנֹּם →

г҄еона — Etymology, Origin & Word History | Etymology Explorer