unfrequency

Etymology
From.

Noun

 * 1) * 1761,, Thoughts on Education, London: D. Wilson, page 44:
 * The unfrequency of the exercising boyes in versions and translations, is also a great error: for this will be found a better mean to inure them to Latine than either grammaires, lessons, or confabulations.
 * The unfrequency of the exercising boyes in versions and translations, is also a great error: for this will be found a better mean to inure them to Latine than either grammaires, lessons, or confabulations.