IPA: /ˈʌpˌsprɪŋ/
KK: /ˈʌpˌsprɪŋ/
To suddenly appear or rise up, often from a lower position or level.
The flowers upspring in the garden as spring arrives.
Past: upsprang
Past Participle: upsprung
Upspring is formed from "up-" (meaning upward) and "spring" (from Old English "springan", meaning to leap or burst forth). The word describes the action of leaping or bursting forth in an upward direction.
Think of something leaping or bursting upward — 'up-' means upward, and 'spring' means to leap.