A primitive root, probably to float away (as vapor), but used only as denominative from 'abaq; to bedust, i.e. Grapple -- wrestle.
see HEBREW 'abaq
H79. abaq
[אָבַק] verb denominative Niph`al wrestle (= get dusty, compare κόνις, κονίω, see also StrPirke Aboth, 1, 4 רַגְלֵיהֶם בַּעֲפַר מִתְאַבֵּק = sit at their feet; others, e.g. Di, compare חבק). עִם וַיֵּאָבֵק Genesis 32:25; Infinitive suffix עִם בְּהֵאָֽבְקוֺ 32:26.
אבר (compare Assyrian abâru, be firm, strong DlW).