IPA: /priˈɛmərdʒəns/
KK: /priˈɛmərdʒəns/
Relating to the time before plants begin to grow above the ground.
The preemergence treatment helps control weeds before they sprout.
Preemergence → It is formed from "pre-" (meaning before) and "emergere" (from Latin, meaning to emerge or rise). The word "preemergence" refers to the state or action of something that occurs before it emerges or rises.
Think of something happening 'before' ('pre-') it 'rises' ('emergere') — that's what preemergence means.