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Longman Dictionary of Contemporary English
super-
prefix
EXAMPLES FROM OTHER ENTRIES
▪ a supermarket
▪ a supertanker
▪ a supervisor
▪ the Superbowl
The Collaborative International Dictionary
Super-

Super- \Su"per-\ [L. super over, above; akin to Gr. ?, L. sub under, and E. over. See Over, and cf. Hyper-, Sub-, Supra-, Sur-.]

  1. A prefix signifying above, over, beyond, and hence often denoting in a superior position, in excess, over and above, in addition, exceedingly; as in superimpose, supersede, supernatural, superabundance.

  2. (Chem.) A prefix formerly much used to denote that the ingredient to the name of which it was prefixed was present in a large, or unusually large, proportion as compared with the other ingredients; as in calcium superphosphate. It has been superseded by per-, bi-, di-, acid, etc. (as peroxide, bicarbonate, disulphide, and acid sulphate), which retain the old meanings of super-, but with sharper definition. Cf. Acid, a., Bi-, Di-, and Per-.

Douglas Harper's Etymology Dictionary
super-

word-forming element meaning "above, over, beyond," from Latin super-, from adverb and preposition super "above, over, on the top (of), beyond, besides, in addition to," from *(s)uper-, variant form of PIE *uper "over" (cognates: Sanskrit upari, Avestan upairi "over, above, beyond," Greek hyper, Old English ofer "over," Gothic ufaro "over, across," Gaulish ver-, Old Irish for), comparative of root *upo "under" (see sub-). In English words from Old French, it appears as sur-. The primary sense seems to have shifted over time from usually meaning "beyond" to usually meaning "very much," which can be contradictory. E.g. supersexual, which is attested from 1895 as "transcending sexuality," from 1968 as "very sexual."

Wiktionary
super-

pre. 1 above, over, or upon 2 superior in size, quality, number, degree, status, title, or position 3 inclusive 4 (context physics English) Forms terms relating to supersymmetry 5 (context fiction English) Related to superheroes.