[soo-bi-toh; Italiansoo-bee-taw] /ˈsu bɪˌtoʊ; Italian ˈsu bi tɔ/
adverb
1.
(as a musical direction) suddenly; abruptly:
subito pianissimo.
Origin
1715-25; < Italian < Latinsubitō orig., ablative singular neuter of subitus sudden, equivalent to sub-sub- + -i- (base of īre to go) + -tus past participle suffix
British Dictionary definitions for subito
subito
/ˈsuːbɪˌtəʊ/
adverb
1.
(music) (preceding or following a dynamic marking, etc) suddenly; immediately sub
Word Origin
C18: via Italian from Latin: suddenly, from subitus sudden, from subīre to approach, from sub- (indicating stealth) + īre to go