ἕλιξ

1. anything which assumes a spiral shape :

2. an armlet or ear-ring , (Iliad by Homer)

3. a twist, whirl, convolution , ἕλικες στεροπῆς flashes of forked lightning, (Aeschulus Tragicus)

4. the tendril of the vine, (Euripides): of ivy, (Euripides)

5. a curl or lock of hair , [variant datesAnthology Palantina

6. the coil or spire of a serpent, (Euripides) (ML)