upswell

[ uhp-swel ]

verb (used with or without object)

, up·swelled, up·swelled or up·swol·len, up·swell·ing.

1. to swell up.

upswell

/ ʌpˈswɛl /

verb

1. rare.
   to swell up or cause to swell up

Word History and Origins

Origin of upswell¹

Middle English word dating back to 1350–1400; up-, swell