shard

From Middle English shard, scherd, scheard, schord, from Old English sċeard (“a broken piece; shard”), from Proto-West Germanic *skard, from Proto-Germanic *skardą (“notch; nick”), from *skardaz (“damaged; nicked; scarred”), from Proto-Indo-European *(s)ker- (“to cut”). Akin to Scots schaird (“shard”), French écharde (“splinter”), Dutch schaarde (“tear; notch; fragment”), German Scharte (“notch”), Old Norse skarð (“notch, hack”) ( > Danish skår). The database sense is perhaps derived from the online gaming sense or from SHARD (System for Highly Available Replicated Data), name of a 1980s database product.

出典: Wiktionary「shard」（CC BY-SA 4.0）