early 15c. (earlier superflue, late 14c.), from Latin superfluus "unnecessary," literally "overflowing, running over," from superfluere "to overflow," from super "over" (see super-) + fluere "to flow" (see fluent). Related: Superfluously; superfluousness.
delete superfluous (or unnecessary) words
supererogation
supererogatory
superficial
superficiality
superfluity
superfluous
superfly
supergiant
superheat
superhero
superhighway
