Gorddygiad, n. abduction
Gorddygnu, v. to overtoil
Gorddygyd, v. to superinduce
Gorddylif, n. an overflow
Gorddylifiad, n. defluxion
Gorddylifo, v. to over flow
Gorddyn, n. a boundary
Gorddynead, n. an effusion
Gorddyneu, v. to effuse
Gorddyrchafu, v. to over-raise