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-iasis

  1. a noun suffix occurring in loanwords from Greek:

    psoriasis.



-iasis

combining form

  1. (in medicine) indicating a diseased condition Compare -osis

    psoriasis

“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


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Word History and Origins

Origin of -iasis1

< Greek, equivalent to -iā- v. formative + -sis -sis
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Word History and Origins

Origin of -iasis1

from New Latin, from Greek, suffix of action

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