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-itious

  1. a compound suffix occurring in adjectives of Latin origin (adventitious) and with adjectives, formed in Latin or English, associated with nouns ending in -ition (ambitious; expeditious).Compare -ite2, -ous.
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Origin of -itious

< Latin -icius or -īcius (as in adventitious); and < Latin -itiōsusor -ītiōsus (as in ambitious)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for -itious

-itious

suffix forming adjectives
  1. having the nature of; characterized bynutritious; suppositious
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Word Origin for -itious

from Latin -icius, -itious
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