רִיב rîyb (H7378)

properly, to toss, i.e. grapple; mostly figuratively, to wrangle, i.e. hold a controversy; (by implication) to defend

1) to strive, contend 1a) (Qal) 1a1) to strive 1a1a) physically 1a1b) with words 1a2) to conduct a case or suit (legal), sue 1a3) to make complaint 1a4) to quarrel 1b) (Hiphil) to contend against

or רוּב; a primitive root;