The act or instance of attending; attendance or service rendered.
From 'attend' plus the suffix -ment (which forms nouns from verbs, meaning 'the act of' or 'the result of'). The root is Latin 'attendere.'
Words ending in -ment are usually common (government, payment), but 'attendment' is so obscure that most modern dictionaries dropped it, beaten out by the simpler 'attendance.'
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