H5823. azaq
[עָזַק] verb dig about (Late Hebrew id., also surround, enclose; Aramaic עִזְקְתָא, , ring; Arabic cleave or furrow the earth with implement ; Ethiopic well, cistern); —
Pi`el Imperfect3masculine singular suffix וַיְעַזְּקֵהוּ [Isa 5:2] (intensive) and he dug it carefully about.