Ardd, n. ploughed land
Arddadgan, v. to denounce
Arddangos, to indicate, to shew
Arddangosiad, n. indication
Arddangosol, a. indicative
Arddal, n. support, a bearing
Arddansawdd, n. ontology, the science of entities
Arddansodol, a. metaphysical
Arddant, n. a gag-tooth
Arddawd, n. a prefix, an adjunct