The Barddas of Iolo Morganwg, Vol. I., ed. by J. Williams Ab Ithel, [1862], at sacred-texts.com
The five materials of every existence and life: calas; fluidity; air; 2 sun; 3 and nwyvre. 4
They are thus variously arranged:--
Calas, fluidity, and nwyvre; 1 and the uvel unites with the nwyvre, the air unites with the uvel, the water, or fluidity, unites with the air, and the calas unites with fluidity.
383:2 p. 382 Al. "breath." Al. "firmament."
383:3 Al. "fire." Al. "uvel." Al. "uddel."
383:4 Al. "the soul." Al. "nyvel," i.e. a subtil element.
385:1 p. 384 Al. "enyvel" = nyvel. Al. "animation." Al. "soul." Al. "uddel" = uvel.