A.flood-tide, opp. ἄμπωτις, Hdt.2.11, 7.198; joined with πλημυρίς (s. v. l.), Id.8.129, cf. Hp. ap. Gal.19.135.
2. the roar of the breakers, metaph. of a crowd of people, “ὄχλου τοιούτου ῥαχίαν ἠθροισμένην” Posidipp.27.11; “ῥ. ποιεῖν ἐν δήμῳ” Plu.2.789d, cf. 791a: prov., “ῥαχίας λαλίστερος” Diogenian.7.99.
II. rocky shore or beach (“πᾶς πετρώδης αἰγιαλός” Hsch.), ἁλίστονοι ῥ. A.Pr.713; παρ᾽ αὐτὴν τὴν ῥ. Th.4.10, cf. Plb.3.39.4, Str.16.4.23.
2. = ῥάχις 11.1, S.Fr.1088;= “ῥάχις” 1, Nonn.D.11.182, 39.334 (v. ad fin.). [ῥα^- metri gr. only in late Poets, as AP7.393 (Diocl.); in sense 11.2, Nonn. Il.cc.] (Cogn. with ῥα_σσω, ῥήσσω, and ἀράσσω;῀ τὸν τόπον ᾧ προσαράττει τὸ κῦμα, Ael.Dion.Fr.427: not cogn. with ῥήγνυμι, which has pan-Hellenic η.)