Why is the ninth month called September?
"morbidly swollen," 1540s, from Latin tumidus, from tumere "to swell" (see thigh). Figurative sense (in reference to prose, etc.) is attested from 1640s.
tumid tu·mid (tōō'mĭd, tyōō'-)adj.
Swollen; distended. Used of a body part or organ.
Of a bulging shape; protuberant.