Meaning of BRITTLE in English
1》 hard but liable to break easily.
2》 (of a voice) unpleasantly hard and sharp and showing signs of nervousness or instability.
■ noun a ~ sweet made from nuts and set melted sugar.
~ly (or brittly ) adverb
ME, ult. of Gmc origin and related to OE brēotan 'break up'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004