professional
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
English > Greek (Woodhouse)
adjective
as opposed to lay: Ar. and P. δεινός, P. πεπαιδευμένος.
professional speaker: P. and V. ῥήτωρ, ὁ.