■ adjective occurring or done quickly and unexpectedly.
Phrases
( all ) of a ~ (or archaic on a ~ ) ~ly.
Derivatives
~ly adverb
~ness noun
Origin
ME: from Anglo-Norman Fr. sudein , from an alt. of L. subitaneus , from subitus '~'.
■ adjective occurring or done quickly and unexpectedly.
Phrases
( all ) of a ~ (or archaic on a ~ ) ~ly.
Derivatives
~ly adverb
~ness noun
Origin
ME: from Anglo-Norman Fr. sudein , from an alt. of L. subitaneus , from subitus '~'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004