ῥεφανίς

ῖδος, ῖδος, ι, ἡ
A. radish, Raphanus sativus, Ar. Nu. 981, Pl. 544, Fr. 253, Cratin. 313, Eup. 312, Thphr. HP 1.2.7, Dsc. 2.112, etc.: later ῥεφανίς, Philum. Ven. 18.4, Gloss.; cf. ῥάφανος.
II. ῥ. ἀγρία charlock, Raphanus raphanistrum, Dsc. 2.112, Plin. HN 19.82. [‐ις,ῖδος in all known passages, though Ath. 2.56e says that ι is common.]
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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