nounarchaic, chiefly Scottish
verb[with object] (weird someone out) North American informal
Old English wyrd 'destiny', of Germanic origin. The adjective (late Middle English) originally meant 'having the power to control destiny', and was used especially in the Weird Sisters, originally referring to the Fates, later the witches in Shakespeare's Macbeth; the latter use gave rise to the sense 'unearthly' (early 19th century)
Remember that weird is spelled with the e before the i: it does not follow the usual rule of i before e except after c.
a weird, eerie, inhuman sound.