From garam; a bone (as the skeleton of the body); hence, self, i.e. (figuratively) very -- bone, strong, top.
see HEBREW garam
H1634. gerem
גֶּ֫רֶם noun [masculine] bone, strength, self (?) (Arabic body, Aramaic גְּרַם, bone, self) — absolute גָּ֑רֶם Genesis 49:14 2t.; construct גֶּרֶם 2 Kings 9:13; suffix גְּרָמָיו Job 40:18;
1 bone Proverbs 17:22 (collective) 25:15; of behemoth (hippopotamus) Job 40:18 ("" עצם q. v.)
2 strength Genesis 49:14 גָּ֑רֶם חֲמֹר strong ass (literally bony, so VB).
3 self (compare עצם), 2 Kings 9:13 הַמַּעֲלוֺת גֶּרֶם so Ges Ew Ke, but text dubious, see conjectures in Klo.
[גְּרַם] noun [masculine] bone (Biblical Hebrew גֶּ֫רֶם; Christian-Palestinian Aramaic SchulthLex. 46); — plural suffix גַּרְמֵיהוֺן Daniel 6:25.