Go to 'thermo-' entry Go to 'dino-' entry Go to 'chondro-' entry Go to 'aero-' entry Go to '-logy' entry Go to 'thaumato-' entry Go to 'nano-' entry Go to '-sophy' entry Go to 'bucco-' entry Go to '-ism' entry Go to '-lysis' entry Go to 'galacto-' entry Go to '-anthropy' entry Go to 'pneumo-' entry Go to '-ploitation' entry Go to '-lithic' entry Go to '-sepalous' entry Go to 'onco-' entry Go to '-parous' entry Go to 'dermato-' entry Go to 'multi-' entry Go to 'dodeca-' entry Go to '-zoon' entry Go to 'vermi-' entry Go to 'crystallo-' entry Go to 'biblio-' entry Go to 'eco-' entry Go to 'juxta-' entry Go to 'facio-' entry
Affixes: the building blocks of English
Affixes: the building blocks of English

-aceous

Forming adjectives.

[Latin adjectival ending -aceus, of the nature of, plus -ous.]

Some examples are formed from plant family names in -aceae: rosaceous, of the rose family, the Rosaceae; orchidaceous, of an orchid, a member of the Orchidaceae family; solanaceous, of the Solanaceae, the nightshade family.

The ending also appears in a variety of words from biology and geology, as in herbaceous, relating to plants that are leafy and not woody; saponaceous (Latin sapon, soap), soapy ; olivaceous, having a dusky yellowish-green or olive-green colour; proteinaceous, of the nature of a protein or consisting of protein; and sebaceous (Latin sebum, tallow), resembling tallow or fat or secreting a fatty substance.

See also -ous.

Visit Michael Quinion’s World Wide Words site for 2000+ articles on English!

Copyright © Michael Quinion 2008–. All rights reserved. Page last updated 23 September 2008.
Your comments and suggestions on the site are very welcome.