quaver
Pronunciation: /ˈkweɪvə/
verb
noun
- 2 Music, chiefly British a note having the time value of an eighth of a semibreve or half a crotchet, represented by a large dot with a hooked stem. Also called eighth note

Origin:
late Middle English (as a verb in the general sense 'tremble'): from dialect quave 'quake, tremble', probably from an Old English word related to quake. The noun is first recorded (mid 16th century) as a musical term