Dictionary entry

πεντήκοντα

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

πεντήκοντα, indecl., οἱ, αἱ, τά,

fifty: Lk 7:4116:6, Jo 8:5721:11, Ac 13:20; ἀνὰ π., Lk 9:14; κατὰ π., Mk 6:40.†