From chamac; a species of unclean bird (from its violence), perhaps an owl -- night hawk.
see HEBREW chamac
H8465. Tachan
תַּ֫חַן proper name, masculine (perhaps abbreviated from תַּחֲנֶה) — an Ephraimite Numbers 26:35 ᵐ5 Ταναχ, 1 Chronicles 7:25 ᵐ5 Θαεν, ᵐ5L Θααν.