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-ous

From Teflpedia

-ous is an adjective suffix used in adjective formation from nouns in English meaning “to denote possession or presence of a quality in any degree, commonly in abundance.”[1]

It’s sometimes spelt -ious[2][3]

Examples include ‎bulb + ‎-ous → ‎bulbouscourage + ‎-ous → ‎courageousjoy + ‎-ous → ‎joyouspoison + ‎-ous → ‎poisonousriot + ‎-ous → ‎riotous, etc.[4][5][6]

Adjectives like this are in turn, nominalised with -ity, e.g. religious → religiosity, with the U being dropped (U dropping).

A few words end in -ous but don’t contain this morpheme, e.g. nous, yous, sous, etc.

References[edit | edit source]