Strong's Greek Concordance

G4572: σεαυτοῦ

seautoû · “yourself”

Definition

of (with, to) thyself

KJV translates it as: thee, thine own self, (thou) thy(-self)

Word origin: genitive case from G4571 (σέ) and G846 (αὐτός), also dative case of the same, , and accusative case , likewise contracted , , and , respectively;

Extended definition

σεαυτοῦ, -ῆς, -οῦ
(in NT not contracted, σαυτοῦ, as in Att..),
reflex. prop. of 2nd of person(s) sing., used only in genitive, dative and accusative
(of, to) thyself: Mat.4:6, Jhn.8:13, 1Ti.4:16, al. (In Hellenistic, the pl. is ἑαυτῶν (which see), not ὑμῶν αὐτῶν as in Attic, see Bl., § 13, 1.) †
(AS)

Abbott-Smith Manual Greek Lexicon (1922) via STEPBible TBESG (CC BY 4.0).