From Latin 'pallidus' (pale), from 'pallēre' (to turn pale) — same root behind pallid, pallor, and appall.
Light in color; having less color than usual, especially in the face.
From Old French 'pale,' from Latin 'pallidus' meaning 'pale, pallid,' from 'pallēre' (to be pale, to turn pale). The root may be related to PIE *pol- (gray). Key roots: pallēre (Latin: "to be pale").