1660s, from Latin stagnatum, stagnatus, past participle of stagnare "to stagnate," from stagnatum "standing water, pond, swamp," perhaps from a PIE root *stag- "to seep drip" (source also of Greek stazein "to ooze, drip;" see stalactite). Figurative use by 1709. Related: Stagnated; stagnating.
Industry will stagnate if we do not stimulate our economy
There are marshes that stagnate the waters
blood stagnates in the capillaries
The old man sat and stagnated on his porch
staggard
stagger
staggering
staging
stagnant
stagnate
stagnation
stagy
staid
stain
stainless
