onus

[ oh-nuhs ]
/ ˈoʊ nəs /
||

noun, plural o·nus·es.

a difficult or disagreeable obligation, task, burden, etc.
burden of proof.Compare onus probandi.
blame or responsibility.

Origin of onus

1630–40; < Latin: load, burden

Definition for onus (2 of 2)

onus probandi

[ oh-noo s proh-bahn-dee; English oh-nuh s proh-ban-dahy, -dee ]
/ ˈoʊ nʊs proʊˈbɑn di; English ˈoʊ nəs proʊˈbæn daɪ, -di /

noun Latin.

the burden of proof.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for onus

British Dictionary definitions for onus (1 of 2)

onus

/ (ˈəʊnəs) /

noun plural onuses

a responsibility, task, or burden

Word Origin for onus

C17: from Latin: burden

British Dictionary definitions for onus (2 of 2)

onus probandi

/ (ˈəʊnəs prəʊˈbændɪ) /

noun

law the Latin phrase for burden of proof
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for onus

onus


n.

1640s, from Latin onus "load, burden," figuratively "tax, expense; trouble, difficulty," from PIE *en-es- "burden" (cf. Sanskrit anah "cart, wagon"). Hence legal Latin onus probandi (1722), literally "burden of proving."

Online Etymology Dictionary, © 2010 Douglas Harper