Meaning

adjective ostentatiously lofty in style

adjective abnormally distended especially by fluids or gas

adjective of sexual organs; stiff and rigid

originEtymology tree Proto-Indo-European *tum-der. Latin tumeō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin tumidusbor. English tumid Borrowed from Latin tumidus (“swollen”).

Etymology from Wiktionary, CC BY-SA 3.0