IPA: /ˈpriːtrɪmd/
KK: /priˈtrɪmd/
Cut or shaped beforehand to a specific size or style.
The pretrimmed fabric made sewing the dress much easier.
Pretrimmed → It is formed from "pre-" (meaning before) and "trimmed" (from the root "trim" which comes from Old English "trymman", meaning to make neat or tidy). The word "pretrimmed" means made neat or tidy before a certain point or event.
Think of something being made neat or tidy ('trimmed') 'before' ('pre-') it is used or presented.