"Tunud" is a word in HILIGAYNON, CEBUANO

túnud - To disappear, sink, go down, set.
Nagakatúnud na ang ádlaw. The sun is
setting. (cf. katúndan—the west).

tunúd - Sunk, set, gone down (of the sun,
etc.; cf. túnud).

túnud v {1} [A; c] convey below the surface of the water or into a pit.
Nagtúnud kug patayng irù sa lawud, I threw the dead dog into the deep part of the ocean.
Itúnud na ang lungun sa lungag, Lower the casket into the hole now.
{2} [B245; b6] for the sun to set.
Nagkatúnud (nagkatunud) na ang adlaw sa kasadpan, The sun is sinking in the west.