neume
noun
ˈnüm 
ˈnyüm
: any of various symbols used in the notation of Gregorian chant
neumatic
nu̇-ˈma-tik
adjective nyu̇-
Word History
Etymology
Middle English, from Medieval Latin pneuma, neuma, from Greek pneuma breath — more at pneumatic
First Known Use
14th century, in the meaning defined above