[], (Adjective)

Definitions:
- Not round. In later use specifically (in Phonetics): not enunciated with the lips rounded.


Phrases:

Origin:
late 16th century; earliest use found in Cyprian Lucar (1544–?1611). From un- + round

[], (Verb)

Definitions:
- To make (something) no longer round. In later use specifically (in Phonetics): to reduce or eliminate the rounding of the lips when enunciating (a sound, especially a vowel).


Phrases:

Origin:
early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From un- + round, originally after French † desrondir