- pompous (adj.)
- late 14c., "characterized by exaggerated self-importance," from Old French pompos (14c., Modern French pompeux) and directly from Late Latin pomposus "stately, pompous," from Latin pompa "pomp" (see pomp). More literal (but less common) meaning "characterized by pomp" is attested from early 15c. Related: Pompously.
- self-important (adj.)
- "having or showing an exaggerated estimation of one's own importance," 1728, from self- + important. Related: Self-importance (1728).