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Classic usage
Reading level: medium
Estimated CEFR level: A2 — Elementary
Estimated from word frequency; not an official CEFR classification.
PIE word *ḱóm PIE word *swé From Middle English custume, borrowed from Anglo-Norman custume, inherited from Latin consuētūdinem, a noun derived from cōnsuēscō, from con- (“with”) + suēscō (“become used or accustomed to”). Displaced native Old English ġewuna. Doublet of costume, consuetude, and kastom. The adjectival form first appears c. 1830.
usage, usance
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Classic usage
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