Nearby words

  1. rosy finch,
  2. rosy pastor,
  3. roszak,
  4. roszak, theodore,
  5. rosé,
  6. rot.,
  7. rota,
  8. rota bed,
  9. rotachute,
  10. rotameter

Origin of rot

before 900; (v.) Middle English rot(t)en, Old English rotian, cognate with Frisian rotsje, Dutch rotten; (noun) Middle English, perhaps < Old Norse rot (perhaps partly derivative of the v.); cf. ret, rotten)

Related formshalf-rot·ted, adjectiveun·rot·ted, adjective

Synonym study

1. See decay.


rule of thumb.


rotating. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rot

British Dictionary definitions for rot


/ (rɒt) /

verb rots, rotting or rotted


Word Origin for rot

Old English rotian (vb); related to Old Norse rotna . C13 (noun), from Scandinavian

abbreviation for

rotation (of a mathematical function)
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 rot
Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for rot


[ rŏt ]


To undergo decomposition, especially organic decomposition; decay.


Any of several plant diseases characterized by the breakdown of tissue and caused by various bacteria or fungi.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.