Crossman

Part of speech: noun

Definitions

1. A person who actively moves across defined boundaries or pathways
2. An individual who traverses or moves over designated lines or areas
3. Someone who goes from one side of a boundary or pathway to another

Etymology: "Crossman" is a plain compound: "cross" combined with "-man," so it denotes a person who crosses. The "cross" element here is the verb sense of moving over or across something, and "-man" is the familiar English suffix for a person associated with an activity or occupation. The source also suggests a possible connection to the phrase "on the cross," meaning dishonestly, so the word may have picked up a sense of someone who acts underhandedly. That link is uncertain, and no firm evidence is given for it, so the sense of crossing over remains the clearest explanation.