Abbott-Smith Manual Greek Lexicon
ὑπό-μνησις (G5280)
3 ὑπό-μνησις , -εως, ἡ ( ὑπομιμνήσκω ) [in LXX: Ps 70 (71):6 א ( תְּהִלָּה ), Wi 16:11 , II Mac 6:17 * ;] a reminding, reminder : ἐν ὑ. , II Pe 1:13 3:1 ; c. gen., II Ti 1:5 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain