Probably for Cahkmowniy; sagacious; Tachkemoni, an Israelite -- Tachmonite.
see HEBREW Cahkmowniy
תְּחִלָּה noun feminine beginning, הַתְּחִלָּה Nehemiah 11:17 (read ᵑ9 ᵐ5 הַתְּחִלָּה SS Öttli), בַּתְּחִלָּה Genesis 13:3 10t.; construct תְּחִלַּת Hosea 1:2; Proverbs 9:10; Ecclesiastes 10:13, בִּתְחִלַּת 2 Kings 17:25 4t., תְ֯חִלַּת. 2 Samuel 21:9, מִתְּחִלַּת 21:10: — construct with nouns ׳תּ חָכְמָה Proverbs 9:10 the beginning, first principle of wisdom ׳תּ דִּבְרֵי Ecclesiastes 10:13 the first word, followed by rel. clause ׳תּ י ׳דִּבֶּר at the beginning of, Yahweh spake (= when Yahweh first spake) Hosea 1:2; preceded by preposition מִן 2 Samuel 21:10, elsewhere by בְּ in the beginning, of the harvest Ruth 1:22; 2 Samuel 21:9 (Qr), of the kingdom Ezra 4:6, of their dwelling there 2 Kings 17:25, of supplications Daniel 9:23, of the shooting up of vegetation Amos 7:1, ׳כְּבַתְּ as in the beginning Isaiah 1:26; ׳בַּתְּ at first, first in order Judges 1:1; 20:18 (twice in verse); 2 Samuel 17:9; at the first, first (or former) time, i.e. first in a series of occurrences, Genesis 13:3 (J), 41:21 (E), 43:18, 20 (J), Daniel 8:1; 9:21.