English word trespass comes from Old French passer (To pass; to pass by.), Old French tres-
| Dictionary entry | Language | Definition |
|---|---|---|
| passer | Old French (fro) | To pass; to pass by. |
| tres- | Old French (fro) | An intensifying prefix that doesn't change the meaning of the prefixed word Trans- (across; traversing). |
| trespasser | Old French (fro) | To travel; to go to. To traverse, to go through. |
| trespas | Old French (fro) | Pass (opening, road, or track, available for passing; especially, one through or over some dangerous or otherwise impracticable barrier; a passageway; a defile; a ford). |
| trespass | English (en) | (legal) Any of various torts involving interference to another's enjoyment of his property, especially the act of being present on another's land without lawful excuse.. Sin [1290]. |