em-bras’: The word has two distinct meanings in the Old Testament:

(1) to clasp and hold fondly in the arms, pointing to a common custom (Ge 29:13; 33:4; 48:10; 2Ki 4:16; So 2:6; 8:3 compare Ac 20:10), and

(2) to have sexual intercourse (Pr 4:8; 5:20; Ec 3:5). It seems to have acquired this technical sense in later Jewish usage.