Dictionary entry

πάλαι

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

πάλαι,

adv. of time,

[in LXX: Is 48:5, 7 (מֵאָז), etc.;]

long ago, of old, in time past (denoting past time absolutely, as πρότερον relatively): Mt 11:21, Lk 10:13, He 1:1, Ju 4; as adj., c. art., II Pe 1:9; of time just past, Mk 6:47 (WH, mg.), 15:44 (WH, mg., R, txt.); c. durat. praes. (RV, all this time), II Co 12:19.†