The Collaborative International Dictionary
Conterminate
Conterminate \Con*ter"mi*nate\, a. [L. conterminare to border
upon, fr. conterminus conterminous; con- + terminus border.]
Having the same bounds; conterminous. [Obs.]
--B. Jonson.
Wiktionary
conterminate
a. (context obsolete English) Having the same bounds or extent; conterminous.