Meaning

noun something regarded as a normative example

adjective conforming with or constituting a norm or standard or level or type or social norm; not abnormal

adjective in accordance with scientific laws

originEtymology tree Latin norma Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālis Latin nōrmālisder. English normal From Latin normālis (“made according to a carpenter's square; later: according to a rule”), from nōrma (“carpenter's square”), of uncertain origin; doublet of normale. The earliest meaning of the word in English was "perpendicular; forming a right angle" like something…

Etymology from Wiktionary, CC BY-SA 3.0