Ἀββᾶ

English (Strong)

of Chaldee origin (אַב); father as a vocative: Abba.

English (Thayer)

(WH (βά), Hebrew אָב father, in the Chaldean emphatic state, אַבָּא i. e. ὁ πατήρ, a customary title of God in prayer. Whenever it occurs in the N. T. (אַבָּא, through frequent use in prayer, gradually acquired the nature of a most sacred proper name, to which the Greek-speaking Jews added the appellative from their own tongue.

Greek Monotonic

Ἀββᾶ: Εβρ. λέξη, πατέρας, σε Καινή Διαθήκη

Middle Liddell

Hebr. word, father, NTest.