Tewychiant, n. thickeness

Tewychu, v. to thicken

Tewyn, n. a firebrand

Teyrn, n. a sovereign

Teyrnas, n. a kingdom

Teyrnasiaeth, n. a reign

Teyrnasol, a. of a kingdom; regnant

Teyrnasu, v. to reign

Teyrnedd, n. a monarchy

Teyrn-ged, n. a tribute