Cyfneithio, v. to betrothe
Cyfnerth, n. support, firmness
Cyfnerthedigion, n. restoratives
Cyfnerthedd, n. compactness
Cyfnerthi, n. steadiness
Cyfnerthiad, n. confirmation
Cyfnerthu, v. to strengthen
Cyfnesaf, next, nearest in place
Cyfnesafedd, n. contiguity
Cyfnesafiad, n. a next of kin