arch, a. greatest, chief; cunning, roguish, mischievous, sportive.

arch, v. vault, concamerate.--n. concameration, fornication.

archæologist, n. antiquary, antiquarian, paleologist.

archæology, n. paleology.

archbishop, n. primate, metropolitan.

arched, a. vaulted, camerated, forniciform, fornicated.

archery, n. Associated Word: toxophilite.

archives, n. pl. public records, registers, muniments.

ardent, a. zealous, passionate, fervent, warm, enthusiastic,
sanguine, vehement, impassioned; spirituous, alcoholic; fiery, hot,
burning, flagrant, intense.

ardor, n. eagerness, zeal, heartiness, impetuosity, fervor,
vehemence, empressement, intensity, warmth. Antonyms: indifference,
apathy.

arduous, a. onerous, difficult, laborious, wearisome.

arena, n. amphitheater, ring, field.

arguable, a. debatable, disputable, moot, contestable.