LSJ
one must cut away all round, Antyll. ap. Orib. 45.2.5 ; metaph, π. ἐπιφυομένας κῆρας τῷ φιλίας φυτῷ Ph. 1.345, cf. Porph. VP 22.
Adj. περικοπτέος, α, ον, τὰ πολλὰ π. τῶν ἀκροαμάτων Plu. 2.711e.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)