"Rim" describes the outer edge of a circular object, and Latin words that come closest are:
* "orbis": meaning "circle" or "orbit," suggesting the circular form of a rim
* "margo": meaning "edge," "border," or "margin," emphasizing the rim as a boundary.
However, the most accurate way to translate "rim" into Latin would depend on the specific context. For example:
* "rim of a wheel": "circumferentia rotæ"
* "rim of a cup": "labium calicis"
* "rim of a volcano": "crateris margo"
Ultimately, the best translation would be the one that most accurately conveys the meaning of "rim" in the given context.