Quick Definition
perpetuity
Strong's Definition
remote time, i.e. the future or past indefinitely; often adverb, forever
Derivation: (Aramaic) corresponding to H5769 (עוֹלָם);
KJV Usage: for (n-)ever (lasting), old.
TWOT Reference: 2912
Outline of Biblical Usage
1) perpetuity, antiquity, for ever
STEPBible — Tyndale Abridged Hebrew Lexicon
עָלַם (a.lam) — perpetuity. perpetuity, antiquity, for ever Aramaic of o.lam (עוֹלָם ": old" H5769J)
Brown-Driver-Briggs Hebrew Lexicon
עָלַם n.[m.] perpetuity, antiquity base