Word Study
overarch
CIDE DICTIONARY
overarch, v. t. & i.
To make or place an arch over; to hang over like an arch. Pope. [1913 Webster]
ROGET THESAURUS
overarch
Covering
VB cover, superpose, superimpose, overlay, overspread, wrap, encase, incase, face, case, veneer, pave, paper, tip, cap, bind, bulkhead, bulkhead in, clapboard, coat, paint, varnish, pay, incrust, stucco, dab, plaster, tar, wash, besmear, bedaub, anoint, do over, gild, plate, japan, lacquer, lacker, enamel, whitewash, parget, lay it on thick, overlie, overarch, endome, conceal, anodize, galvanize.For further exploring for "overarch" in Webster Dictionary Online