Niednagel

Etymology
, either from unattested or from,  (attested as nijnnaghel, 1562). The words may originally be derived from,. The later form with -d- is due to the belief that such and other harms are caused by other people's envy (🇨🇬, 🇨🇬, 🇨🇬); compare 🇨🇬.

Noun

 * 1) hangnail
 * 2) ingrown nail