-o

suffix

(forming informal diminutives)

L1448812 on Wikidata ↗

Wiktionary

Pronunciation: /əʊ/ / /əʉ/ / [æ̠ʉ~ɐʉ]

suffix

Etymology: Rebracketing of typo.

Added to verb stems to create a noun describing an error relating to the action described by the verb.