Arch, n. a request, a petition, a demand: n. a trunk, or chest: a. chief, topmost, principal
Archangel, n. archangel
Archdeyrn, n. a monarch
Archdeyrnaeth, n. monarchy
Archdeyrnol, a. monarchial
Archddug, n. an archduke
Archdduges, n. archduchess
Archddugiaeth, n. archdukedom
Archddugol, a. archducal
Archedig, a. demanded, required