σφώ

• σφῶῐ̈ (sphôï) — Epic

A conflation of the consonantism of σφεῖς (spheîs, “they”) with the vocalism of νώ (nṓ, “we two”).^[1]

σφώ • (sphṓ)

1. second person dual personal pronoun: you two, both of you, you both
   • 800 BCE – 600 BCE, Homer, Iliad 1.335–336:

     ... οὔ τί μοι ὔμμες ἐπαίτιοι ἀλλ’ Ἀγαμέμνων,
     ὃ σφῶϊ προΐει Βρισηΐδος εἵνεκα κούρης.

     ... oú tí moi úmmes epaítioi all’ Agamémnōn,
     hò sphôï proḯei Brisēḯdos heíneka koúrēs.

     
     To me you aren't blameworthy, but Agamemnon,
     who sent you both for the girl Briseis.

Singular and plural are σῠ́ (sú) and ῡ̔μεῖς (hūmeîs).

• σφωΐτερος (sphōḯteros, “second person dual possessive adjective”)

• “σφώ”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
• σφώ in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
• Herbert Weir Smyth & Gordon M. Messing, Greek Grammar, Cambridge, American Book Company, 1920, section 325.
• William W. Goodwin, A Greek Grammar. Revised and enlarged, Boston, 1900, p.82f.
• Beekes, Robert S. P. (2010) Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), volume II, with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 1429