A primitive root; apparently meaning to curve (as with a burden); to urge -- crave.
H404. akaph
אָכַף verb press, urge (Mishna id., Aramaic be urgent, compare , Arabic saddle); —
Qal Perfect Proverbs 16:26 ׳א מִּ֑יהוּ עָלָיו ("" לוֺ עָֽמְלָה עָמֵל נֶפֶשׁ) i.e. his hunger impels him to work.