Wiktionary
costeth
vb. (context archaic English) (en-third-person singular of: cost)
Usage examples of "costeth".
And all men know What costeth little that we rate but low.
The Knight shook his head with a faint smile, but for all that, Robin's words made him more blithe of heart, for in truth hope, be it never so faint, bringeth a gleam into darkness, like a little rushlight that costeth but a groat.