Sylltiad, n. a making clear
Syllty, n. a treasury
Syllu, v. to observe; to gaze
Syllwg, n. an open prospect
Syllwr, n. a spectator
Syllwydr, n. a spying-glass
Sym, n. what is whole
Symaeth, n. a complete state
Symerth, n. simple power
Symiant, n. comprehension