I. adverb or adjective Etymology: Italian, from piano softly Date: 1724 very softly, II. noun (plural pianissimi or -mos) Date: 1830 a passage played, sung, or spoken very softly
PIANISSIMO
Meaning of PIANISSIMO in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012