onerous

From Middle English onerous, from Middle French onereux, from Old French onereus, from Latin onerosus (“burdensome”), from onus (“load”).

• (UK) IPA^(key): /ˈɒnəɹəs/, /ˈəʊnəɹəs/
• (US) IPA^(key): /ˈɑnəɹəs/, /ˈoʊnəɹəs/

onerous (comparative more onerous, superlative most onerous)

1. imposing or constituting a physical, mental, or figurative load which can be borne only with effort.
   • 1820, Washington Irving, "The Legend of Sleepy Hollow":

     That all this might not be too onerous on the purses of his rustic patrons, who are apt to consider the costs of schooling a grievous burden, and schoolmasters as mere drones, he had various ways of rendering himself both useful and agreeable.

   • 1848, Charlotte Brontë, Shirley, ch. 13:

     Again, and more intensely than ever, she desired a fixed occupation,—no matter how onerous, how irksome.

   • 1910, Jack London, "The Golden Poppy" in Revolution and Other Essays:

     [I]t has become an onerous duty, a wearisome and distasteful task.

• (burdensome): demanding, difficult, taxing, wearing

• onerously

• honerous, onerose, onerouse

From Middle French onereux, from Old French onereus, from Latin onerosus.

• IPA^(key): /ɔnɛˈruːs/, /ɔˈnɛrus/

onerous

1. (Late Middle English) onerous

• English: onerous

• “onerǒus (adj.)” in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 2019-1-7.