ἀνάλαβος
From LSJ
Δελφῖνα νήχεσθαι διδάσκεις: ἐπὶ τῶν ἐν ἐκείνοις τινὰ παιδοτριβούντων, ἐν οἷς ἤσκηται → Teaching dolphins to swim: is applied to those who are teaching something among people who are already well versed in it
Greek (Liddell-Scott)
ἀνάλαβος: ὁ, εἶδος μοναχικοῦ ζωστῆρος, «σταυροειδῶς τοῖς ὤμοις περιπλεκόμενος» Εὐάγρ. Μοναχ., Δουκάγγ. ἐν λέξει.