σφεῖς cf. σφε the use of σφι, σφιν as dat. sg. for οἱ is rare, Hhymn., Aesch., Soph. Acc. σφέα^ς, mostly enclit. pronounced as a long syllable, Hom., Hdt.
I.masc. and fem. pl. of the Pron. of 3rd person, they, = αὐτοί, Hdt., attic
II.in Hom. this Pron. is always personal, and therefore he uses no neut.; but Hdt. has neut. pl. σφέα.