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a suffix occurring in scientific, especially medical, words from Greek: psoriasis.
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
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Which form is used to state an obligation or duty someone has?

Origin of -asis

<Latin <Greek -iā- verb stem + -sis-sis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use -asis in a sentence

British Dictionary definitions for -asis


suffix forming nouns
a variant of -iasis
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

Other Idioms and Phrases with -asis

as is

Just the way it is, with no changes. For example, We saved a few dollars by buying the floor sample on an as is basis. This expression is used of goods to be sold that may be slightly worn, damaged, or otherwise less than perfect.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.