vesture
A covering of, or like, clothing.
His broad-brim was placed beside him; his legs were stiffly crossed; his drab vesture was buttoned up to his chin; and spectacles on nose, he seemed absorbed in reading from a ponderous volume.
Where it comes from
From Middle English vesture (noun) and vesturen (verb), from Anglo-Norman, from Old French vesteüre, from Vulgar Latin vestītūra (“clothing”), from Latin vestītus, perfect passive participle of vestiō (“to clothe”), from vestis (“garment”).
Adapted from the Wiktionary entry vesture (CC BY-SA 4.0).