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Alternative forms[edit]

  • -ise (non-Oxford British spelling)


From Middle English -isen ‎(-ise, -ize), from Old French -iser ‎(-ize), from Latin -izāre ‎(-ize), from Ancient Greek -ίζειν ‎(-ízein), from Proto-Indo-European *-idyé- ‎(verbal suffix). Cognate with Gothic -𐌹𐍄𐌾𐌰𐌽 ‎(-itjan, verbal suffix), Old High German -izzen ‎(verbal suffix), Old English -ettan ‎(verbal suffix). Also see notes.



  1. Used to form verbs from nouns or adjectives, the verbs having the sense of "to make what is denoted by the noun/adjective".

Usage notes[edit]

  • The suffix -ize has historically been used on words originating from Greek. -ise was used, especially as -vise, -tise, -cise, and -prise, on words that come from various roots (usually via French). In the 19th century, it became common in the United Kingdom (due to French influence) to use -ise also on words that had historically been spelled -ize. -ise is also common in Ireland, Australia, and New Zealand. -ize remains, however, the spelling used by the influential Oxford University Press; it has also always been the spelling used in the United States and Canada.

Derived terms[edit]