WordReference Random House Unabridged Dictionary of American English © 2026
up•spring
(v. up spring′, n. up′spring′),USA pronunciation v., -sprang or -sprung, -sprung, -spring•ing, n.
v.i.
n. Archaic.
v.i.
- to spring up.
- to come into being or existence;
arise:Prosperity began to upspring after the war.
n. Archaic.
- growth or development.
- a coming into existence;
origin.
- bef. 1000; (verb, verbal) Middle English upspringen, Old English upspringan; (noun, nominal) Middle English; Old English upspringe. See up-, spring