ἑαυτοῦ
heautoû
heh-ow-too'
from a reflexive pronoun otherwise obsolete and the genitive case (dative case or accusative case) of αὐτός; him- (her-, it-, them-, also (in conjunction with the personal pronoun of the other persons) my-, thy-, our-, your-) self (selves), etc..

KJV translates as: alone, her (own, self), (he) himself, his (own), itself, one (to) another, our (thine) own(selves), + that she had, their (own, own selves), (of) them(selves), they, thyself, you, your (own, own conceits, own selves, selves)