major-league

The term 'major-league' is a compound adjective formed in American English. Its literal components are 'major', from the Latin for 'greater', and 'league', from the Latin for 'to bind', referring to an association. It originated in the late 19th century to designate the highest tier of professional baseball organizations, the 'Major Leagues', where the best teams were bound together in competition. Through metaphorical extension, the term's sense of superior rank and quality within a sporting context broadened to describe anything of the foremost importance or scale in any field, completing its journey from a literal sports classification to a common adjective denoting top-tier status.

Structure: major (greater) + league (association) major (from Latin 'maior', comparative of 'magnus' meaning great, large; functions as an adjective meaning greater in size, importance, or rank). league (from Latin 'ligare' meaning to bind; via Italian 'lega' and French 'ligue', functions as a noun meaning an association for a common purpose).