surface:  Surface was coined in French on the model of Latin superficiēs ‘surface’ (source of English superficial). It contains the same elements: sur- ‘above’ (a descendant of Latin super) and face ‘face’. => face, superficial
1610s, from French surface "an outermost boundary, outside part" (16c.), from Old French sur- "above" (see sur-) + face (see face (n.)). Patterned on Latin superficies "surface, upper side, top" (see superficial). As an adjective from 1660s.