Origin: Latin suffix -ous
Pompous has 3 different meanings across 1 category:
puffed up with vanity
"a grandiloquent and boastful manner"
"overblown oratory"
"a pompous speech"
"pseudo-scientific gobbledygook and pontifical hooey"
characterized by pomp and ceremony and stately display
Affectedly grand, solemn or self-important.