Cynnawn, n. leading strait
Cynne, n. ignition, burning
Cynneall, n. preconception
Cynnechre, n. first origin
Cyneddfol, a. habitual
Cyneddfu, v. to habituate
Cynneddf, n. disposition
Cynneddwd, n. custom, usage
Cynnefin, a accustomed
Cynnefiniad, n. accustoming