The state, quality, or fact of attending or being present; the office or position of an attendant.
From 'attendant' plus the suffix -cy (forming abstract nouns). 'Attendant' comes from Old French and Latin 'attendere' (to stretch toward, attend).
The word 'attendancy' is so old-fashioned it almost disappeared, but it survives in British formal writing to describe the service status of court attendants or attendants-in-waiting.
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