Plural of equipage; multiple carriages with horses and attendants, or multiple sets of necessary items and staff.
From 'equipage' + '-s' plural suffix. French 'équipages' follows the same formation, where the base word 'équipage' simply adds '-s' for the plural form in both English and French.
A wealthy 18th-century nobleman might possess several different 'equipages'—one for formal court visits, one for country travel, one for town visits—each with different horses, servants, and carriage styles suited to different occasions and seasons!
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