umstroke
nounEtymology From um- + stroke.
1
Obsolete The circumference or periphery of a circle.
2
Archaic A boundary line, especially one at the outermost limit; an extreme edge.
- Such towns as stand, as one may say, on tiptoes on the very umstroke, or on any part of the utmost line of a map […]1608, Thomas Fuller, Pisgah Sight of Palestine:
- Synonyms
- mere