rare. [f. L. labōriōs-us (see next) + -ITY. Cf. F. laboriosité.] Laboriousness.
1656. Blount, Glossogr., Laboriosity, painfulness, laboriousness, or laborosity.
1840. Blackw. Mag., XLVIII. 132. Numberless folio and quarto dissertations … attest their invincible laboriosity.
1842. Blackie, in Tait’s Mag., IX. 749. The lumbering laboriosity of dead grammars and dictionaries.
