Dictionary entry

ἕνδεκα

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

ἕν-δεκα, οἱ, αἱ, τά

indecl.,

eleven: of the eleven apostles, οἱ, ἕ., Mt 28:16, Mk 16:14, Lk 24:9, 33, Ac 1:262:14.†