I. ˌa-lə-ˈgre-(ˌ)tō, ˌä-lə- adverb or adjective
Etymology: Italian, diminutive of allegro
Date: circa 1740
: faster than andante but not so fast as allegro — used as a direction in music
II. noun
( plural -tos )
Date: circa 1846
: a musical composition or movement in allegretto tempo