Having a sharp point; tapered to a point.
From 'point' (from Latin 'punctum,' meaning 'a dot' or 'a sharp end') plus the suffix '-y,' which transforms nouns into descriptive adjectives. The word emerged in informal English around the 17th-18th centuries.
Evolution favored pointy teeth and claws for predators because a sharp edge concentrates force into less surface area—this is why samurai swords are curved and why hypodermic needles are beveled, all following the same physics principle.
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