As a noun gast
is a guest.
As a verb ghast is
As an adjective ghast is
having a ghastly appearance; weird.
Other Comparisons: What's the difference?
(obsolete) To frighten
- And be not so a-gast, for shame! —Geoffrey Chaucer, The House of Fame
- Or whether gasted by the noise I made, full suddenly he fled. —William Shakespeare, King Lear
Variation of gast, from (etyl) gasten, from (etyl) . More at (l).
Poetic abbreviation of ghastly.
Having a ghastly appearance; weird.