STRONGS NT 3422: μνημόσυνον

μνημόσυνον, μνημοσύνου, τό (μνημῶν), a memorial (that by which the memory of any person or thing is preserved), a remembrance: εἰς μνημόσυνον τίνος, to perpetuate one's memory, Matthew 26:13; Mark 14:9; αἱ προσευχαί σου ... ἀνέβησαν εἰς μνημόσυνον ἐνώπιον τοῦ Θεοῦ (without the figure) have become known to God, so that he heeds and is about to help thee, Acts 10:4. (Herodotus, Aristophanes, Thucydides, Plutarch, others; the Sept. for זֶכֶר, זִכָּרון; also for אַזְכָּרָה, i. e. that part of a sacrifice which was burned on the altar together with the frankincense, that its fragrance might ascend to heaven and commend the offerer to God's remembrance, Leviticus 2:9, 16; Leviticus 5:12; Numbers 5:26; hence, εὐωδία εἰς μνημόσυνον, Sir. 45:16; and often in Siracid., 1 Macc., etc.)