STEP Greek Lexicon: μνημόσυνον

μνημόσυνον, -ου, τό

(μνήμων, mindful), [in LXX frequently for זֵכֶר, זִכְרוֹן and cogn. forms ;]

a memorial: Mat.26:13, Mrk.14:9, Act.10:4 (where cf. Lev.2:9, 16 5:12, Num_5:28, Sir.45:16, al.).†

(AS)