Origin: Latin prefix circum-
Circumflex has 4 different meanings across 1 category:
a diacritical mark (^) placed above a vowel in some languages to indicate a special phonetic quality
A diacritical mark (ˆ) placed over a vowel in the orthography or transliteration of many languages to change its pronunciation; while in some other languages over a consonant.
To mark or pronounce with a circumflex.
Having a circumflex mark.