Definitions for upsurgeʌpˈsɜrdʒ; ˈʌpˌsɜrdʒ
Random House Webster's College Dictionary
up•surgeʌpˈsɜrdʒ; ˈʌpˌsɜrdʒ(v.; n.)-surged, -surg•ing
(v.i.)to surge up; increase; rise.
(n.)the act of surging up; a large or rapid increase.
Origin of upsurge:
rush, spate, surge, upsurge(noun)
a sudden forceful flow
a sudden or abrupt strong increase
"stimulated a surge of speculation"; "an upsurge of emotion"; "an upsurge in violent crime"
a sudden strong rise or flow
to surge up, or to become stronger or greater