Strong's #1441: hebdomekontakis (pronounced heb-dom-ay-kon-tak-is)
multiple adverb from 1440; seventy times:--seventy times.
Thayer's Greek Lexicon:
̔́
hebdomēkontakis
1) seventy times seven times
1a) countless times
Part of Speech: adverb
Relation: from G1440
Citing in TDNT: 2:627, 249
Usage:
This word is used 1 times:
Matthew 18:22: "Until seven times: but, Until seventy times seven."