| 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, )