RO'VER, noun 1. A wanderer; one who rambles about. 2. A fickle or inconstant person. 3. A robber or pirate; a freebooter. [So corsair is from Latin cursus, curro, to run. At rovers, without any particular aim; at random; as shooting at rovers. [I never heard this expression in the United States.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI