-itious

American

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 ).

-itious British

suffix

having the nature of; characterized by

nutritious
suppositious

"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

Etymology

Origin of -itious

< Latin -icius or -īcius (as in adventitious ); and < Latin -itiōsus or -ītiōsus (as in ambitious )

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023