LSJ
or αὐταυτῶ, αὐταυτῆς (-τᾶς), Dor. for ἑαυτοῦ, ἑαυτῆς, πεπαίδευται γὰρ αὐταυτᾶς ὕπο Epich. 172.7, cf. IG 14.646 (Heraclea), Archyt. 2, Philol. 5, Axiop. 1.15, Diotog. ap. Stob. 4.7.62; acc., αὐταυτόν Ecphant. ap. Stob. 4.7.64; αὐταυτόν IG 4.156 (Aegina); as Adj., ταῖς αὐταυταῖς χερσίν Sophr. 19 (-τᾶς Pors.); — also αὐτοῦτα, for ἑαυτοῦ, IG 14.287, 288 (Segesta); pl., αὐτῶντα ib. 316 (Thermae Himeraeae).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)