LSJ
τά, one day of the Athen. festival Σκίρα, on which two chosen young men, sons of citizens, in women΄s dress, carrying vine-shoots loaded with grapes (v. ὠσχός), went in procession from the temple of Dionysus to that of Ἀθηνᾶ Σκιράς, Philoch. 44, Plu. Thes. 22, Alciphr. 1.4, 3.1. sg. ὠσχοφόριον, τό, the sanctuary of Athena Σκιράς in Phalerum, Hsch., AB 318, etc.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
τά, = ὀσχοφόρια, Plut. Thes. 22.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)