“fingernails” is a form of
fingernail
/ˈfɪŋɡɚˌneɪl/ noun
Forms fingernails finger nail finger-nail
- noun The hard, flat translucent covering near the tip of a human finger, useful for scratching and fine manipulation.
Synonyms
Etymology
From Middle English finger neil(e); equivalent to finger + nail. Compare Middle English nayl of fynger (“fingernail”) and Old English handnæġl (“fingernail”). Compare also Saterland Frisian Fingernail (“fingernail”), West Frisian fingerneil (“fingernail”), Dutch vingernagel (“fingernail”), German Fingernagel (“fingernail”), Danish fingernegl (“fingernail”), Swedish fingernagel (“fingernail”), Norwegian fingernegl (“fingernail”), Icelandic fingurnögl (“fingernail”).
Sources: Wiktionary — from the Wiktionary entry “fingernail”, CC BY-SA 4.0. Details