From aischos (disfigurement, i.e. Disgrace); to feel shame (for oneself) -- be ashamed.
1. to disfigure: πρόσωπον, Homer, Iliad 18, 24, and many others.
2. to dishonor: the Sept. Proverbs 29:15.
3. to suffuse with shame, make ashamed: Sir. 13:7. In the N. T. only passive, αἰσχύνομαι; future αἰσχυνθήσομαι; 1 aorist ᾐσχύνθην; to be suffused with shame, be made ashamed, be ashamed: 2 Corinthians 10:8; Philippians 1:20; 1 Peter 4:16; μή αἰσχυνθῶμεν ἀπ' αὐτοῦ that we may not in shame shrink from him, 1 John 2:28 (Sir. 21:22 αἰσχυνθήσεται ἀπό προσώπου (Isaiah 1:29; Jeremiah 12:13; cf. Buttmann, § 147, 2)); followed by an infinitive (on which see Winer's Grammar, 346 (325)), Luke 16:3. (Compare: ἐπαισχύνω (ἐπαισχύνομαι, καταισχύνω.)