1. a furrow made in ploughing, Lat. sulcus, (Homer), etc.; αὔλακ᾽ ἐλαύνειν to draw a furrow , (Hesiod)

2. metaphorically of a wife as the bearer of children , (Sophocles Tragicus)

3. metaphorically also, a furrow in the skin, a gash, wound , (Aeschulus Tragicus)

4. = ὄγμος, a swathe , (Theocritus Poeta Bucolicus) (Prob. from same Root as ὁλκός, Lat. sulcus, from ἕλκω.) (ML)