Cynnydd, n. increase, growth
Cynnyddiad, n. an increasing
Cynnyddol, a. increasing
Cynnyddu, v. to increase
Cynnyg, n. proffer, offer; v. to offer; to tender
Cynnygiad, n. a proposition
Cynnygiol, a. tendering
Cynnygwr, Cynnygydd, n. a proposer
Cynnyrch, n. produce
Cynnyrchiad, n. production