Definition - The degree of an adjective or an adverb that shows that something has more of or is better than something else.

1. Usually, this is indicated by either the suffix -er or by modifiers like more or less.

Example -
Cain is the older of the two children.

Oxford English Dictionary -
The term's first citation in its grammatical sense is from circa 1530:
"We and the latines forme our comparatives and superlatyves out of our posytives."
(Jehan Palsgrave, Lesclarcissement de la langue françoyse, Introd. p. xxviii, )

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