circumflex
Concise Oxford English Dictionary © 2008 Oxford University Press:
circumflex /ˈsəːkəmflɛks/
▶noun a mark (^) placed over a vowel in some languages to indicate contraction, length, or another quality. ▶adjective Anatomy curved.
– origin C16: from L. circumflexus (from circum ‘around’ + flectere ‘to bend’), translating Gk perispōmenos ‘drawn around’.
'circumflex' also found in these Oxford entries:

