τοσούτου δέω: see note on E. 21.
ἕτεροι μέν, . . . ἐγὼ δέ: we should say, ‘while others . . ., I . . .’
ἀποτέμνονται τῆς γῆς, ‘cut off and appropriate portions of their territory,’ ἀποτέμνονται is a good example of the use of the middle voice, ‘to do something for one's self.’ τῆς γῆς is a partitive genitive; cp. Theocr. xvii. 86 καὶ μὴν Φοινίκας ἀποτέμνεται Ἀρραβίας τε.
πλεονεκτεῖν: see note on E. 11.
διδομένην, ‘when it was offered to me.’ There is no evidence as to any offer of territory made to Nicocles, but we know from E. 47 that his father ruled practically the whole of Cyprus.
τῆς ὑπαρχούσης: gen. after the comparative idea contained in πολλαπλασίαν. For ὑπάρχειν see note on E. 19.