"morbidly swollen," 1540s, from Latin tumidus "swollen, swelling, rising high," figuratively "swollen with anger or pride," from tumere "to swell," from PIE root *teue- "to swell." Figurative sense in English (in reference to prose, etc.) is attested from 1640s. Related: Tumidity.
tumid political prose
puffy tumid flesh
tumbleweed
tumbrel
tumefaction
tumescence
tumescent
tumid
tummy
tumor
tumour
tumulous
tumult