From an unused root meaning to dominate; a ram (just old enough to butt) -- lamb, sheep.
H3532. kebes
כֶּ֫בֶשׂ107 noun masculineExodus 29:38 lamb (√ dubious: Late Hebrew id., battering-ram; Assyrian kabšu, lamb according to COTGloss; Arabic is ram, leader; Syriac lamb, with anom. , is very rare, and probably loan-word; Nö in Frä109) — ׳כ absolute 29:39 43t.; plural כְּבָשִׂים 29:38 61t.; suffix כְּבָשַׂי Job 31:20; —
1 lamb, for sacrifice: Isaiah 1:11; of daily offering Exodus 29:38-39, (twice in verse); 29:40-41, Numbers 28:3-4, (twice in verse) + 12 t. Numbers 28; sin-offering Leviticus 4:32; purification 12:6; 14:10 5t. Leviticus 14; dedication of altar Numbers 7:15 25t. Numbers 7; offerings in 7th month 29:2 22t. Numbers 29, etc. (87 t. Exodus Leviticus Numbers all P); in Ezekiel's temple Ezekiel 46:4 6t. Ezekiel 46; 1 Chronicles 29:21; 2 Chronicles 29:21-22, 32; 35:7; Ezra 8:35, compare simile Jeremiah 11:19.
2 lambs, as grazing; symbol of devastation Isaiah 5:17 (compare GieBeitr. 1890), simile of Israel Hosea 4:16; in predict. עִםכֿ זְאֵב ׳וְגָר Isaiah 11:6.
3 lambs, as furnishing wool for clothing: Job 31:20 כ ׳גֵּז, Proverbs 27:26 ׳כ לִלְבוּשֶׁ֑ךָ.