For tanchuwm (feminine); Tanchumeth, an Israelite -- Tanhumeth.
see HEBREW tanchuwm
H8576. Tanchumeth
תַּנְחֻ֫מֶת proper name, masculine (? LagBN 126 f. thinks feminine) parent of Seraiah, a Hebrew captain, after fall of Jerusalem Jeremiah 40:8 = 2 Kings 25:23 ( Lagl.c. conjecture תסחמת, Egyptian name).
נַחְנוּ see אֲנַחְנוּ b above