χοιροκέφαλος
From LSJ
ὁ κόσμος ἀλλοίωσις, ὁ βίος ὑπόληψις → the universe is flux, life is opinion | the universe is transformation: life is opinion | the universe is change, life is a fleeting impression | the universe—mutation: life—opinion
Greek (Liddell-Scott)
χοιροκέφαλος: -ον, ὁ ἔχων χοίρου κεφαλήν, «γουρουνοκέφαλος», Ἰω. Μαλαλ. σ. 120, 3.