sum·mit / ˈsəmit/ • n. 1. the highest point of a hill or mountain. ∎ fig. the highest attainable level of achievement: the dramas are considered to form one of the summits of world literature.2. a meeting between heads of government: [as adj.] a summit conference.

summit XV. — OF. som(m)ete, also somet, sumet (mod. sommet), f. som, sum :- L. summum, n. sg. of summus (see SUM); the sp. with -it (from XVII) is due to assim. to †summity summit (XIV–XVIII) — (O)F. sommité — late L. summitās (see -ITY).