The term "agnail" is also used in modern to describe microscopic, hook-like structures on surfaces (such as bionic cutting tools or cactus spines) that help with fluid transport or fog collection. Electronic Entertainment Expo 4K | Merriam-Webster
: Use clean cuticle nippers to cut the dead skin close to the base. agnail
: It comes from the Old English word angnægl . Ang- (meaning tight, painful, or vexatious). -nægl (meaning nail, specifically an iron nail or spike). The term "agnail" is also used in modern