Where does “ⲕⲟⲗⲩⲙⲃⲏⲑⲣⲁ” come from?
ⲕⲟⲗⲩⲙⲃⲏⲑⲣⲁ (Coptic) comes from Ancient Greek κολυμβήθρα, from Ancient Greek -ήθρα, from Ancient Greek -θρον, from Proto-Hellenic [[*-tron]] ~ [[*-tʰron]], from Proto-Indo-European [[*-trom]] ~ [[*-dʰrom]].
ⲕⲟⲗⲩⲙⲃⲏⲑⲣⲁ (Coptic): pool
Ancestry of “ⲕⲟⲗⲩⲙⲃⲏⲑⲣⲁ”, step by step