prized object; treasured item
Refers to an object that is cherished or kept with affection, often a small personal item or a collectible.
My grandmother's keepsake ring is my treasured possession.
Compound of 愛玩 (aigan, 'cherishing, caring for') and 物 (butsu/mono, 'thing'). The exact historical derivation is uncertain, but the word follows a common pattern for describing cherished objects.