intercursus

Middle English entercours, commercial dealings, from Old French entrecours, from Latin intercursus, a running between, interposition, from past participle of intercurrere, to mingle with : inter-, inter- + currere, to run; see kers- in Indo-European roots.

Gesticulating and menacing -- and getting the double entendre -- in the Supreme Court in 1824. Ann Althouse 2007

One was a commercial treaty with Flanders, so disastrous as to be known in that country by the name of "malus intercursus;" the other involved the surrender of the unfortunate duke of Suffolk.

The History of the Reign of Ferdinand and Isabella the Catholic — Volume 3 William Hickling Prescott 1827

A treaty of commerce was finished, which was favorable to the Flemings, and to which they long gave the appellation of "intercursus magnus," the great treaty.

The History of England in Three Volumes, Vol.I., Part C. From Henry VII. to Mary David Hume 1743

Originally spelt entercourse, it comes from the French entrecours ` commerce, 'which is from the Latin intercursus (also ` commerce').

VERBATIM: The Language Quarterly Vol XV No 2 1984