Strong's G3819 — πάλαι (adverb)
palai (pal'-ai) adv.
1. (adverbially) formerly
2. (by relatively) sometime since
3. (elliptically as adjective) ancient
[probably another form for G3825 (through the idea of retrocession)]
KJV: any while, a great while ago, (of) old, in time past 
Root(s): G3825 
Hebrew root: πάλιν
Occurrences: 7