Howdy
来自Big Physics
early 19th century: alteration of how d'ye .
wiktionary
Shortened form of "how d'ye do" (i.e. how do you do) or less commonly "how do you fare?".
etymonline
howdy
greeting salutation, originally a dialectal contraction of a phrase inquiring after someone's health, by 1720 as howdy'ee; c. 1600 as how dee, originally in servants' lines in old plays; a contraction of how do ye? (1560s), Huet dest þou? (mid-14c.). The form how dee do is attested from 1680s.
