undip means to bring back up from a dipped state. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
verb
- To bring back up from a dipped state.“You undip your headlights. You can see the gazelle, the gazelle can see only the light. Your companion in the passenger seat opens the door, rests the rifle on the hinge, aims — all without haste, because the gazelle is stock still — and fires.”