- (linguistics) To precede a spoken vowel sound with a "y" sound, as the u in "pure" and "cute".
- iotate (attested 1939 iotated, 1978 iotate)
The verb form iotize/iotise is exceedingly rare, compared to the participle, noun and adjective forms.
The adjective iotified is used in the names of several Cyrillic letters in the Unicode standard. Although widely cited, it appears to be a nonce borrowing from Slavic, however, as the corresponding back-formations iotify and iotification are unattested.