ˈnäḵˌshläk noun
( plural nachschlä·ge -lāgə ; or nachschlags )
Etymology: German, literally, afterstroke, from Middle High German nāchslac blow struck from behind, from nāch after, behind (from Old High German nāh ) + slac blow (from Old High German slag ); akin to Old High German slahan to beat, strike — more at nigh , slay
1. : a musical ornament consisting of one or several short unaccented grace notes attached to and played in the time of the preceding main note or tone
2. : the auxiliary closing note or notes usually played at the end of a trill