Cydu, v. to bag, to pouch
Cydundeb, n. unity, union
Cyduniad, n. a consenting
Cydwaed, a. to the same blood
Cydwaeddiad, n. conclamation
Cydwas, n. a fellow servant
Cydwe, n. a contexture
Cydwedd, n. a yoke fellow
Cydweddu, v. to accord
Cydweinidog, n. a fellow servant