LSJ
ἡ, Cicynna, an Attic deme, Theognost. Can. 101 (-υνα cod.); Κικυννεύς, έως, ὁ, an inhabitant thereof, IG2². 1654.32, al., Ar. Nu. 210; Κικυννόθεν from Cicynna, ib. 134; Κικυννοῖ at Cicynna, Lys. 17.5.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)