[861] In memorĭam (lat.), zum Andenken.
Brockhaus-1911: In perpetuam memoriam · Ad perpetuam memoriam
Herder-1854: ad perpetuam rei memoriam
Meyers-1905: In perpetŭam reĭ memorĭam · Post homĭnum memorĭam · Ad perpetŭam memorĭam · In memorĭam
Pierer-1857: In perpetŭam rei memorĭam · Post homĭnum memorĭam · Ad futuram memoriam · Ad perpetuam memoriam