出典:Wiktionary
From ellipsis of "how is that so?", and also continuing Middle English how-so, hou-so, hu se (“however, in whatsoever way”); equivalent to how + so. Compare West Frisian hoesa (“how so, why”), Dutch hoezo (“how so, why”), German Low German woso (“how so, why”), German wieso (“how so, why”), Swedish hurså (“how so”).
どのよう
what way
How’s everything?
どのようにやっても
どうなさいますか
How now, Nakakuni?
Are you satisfied?
How is that?
How is that?
How’s everything?
でもどうやって?
But how?
なにそれ?
してそのわけは
どのよう
あれはどう?
How about that one?
あれはどう?
どうするの?
どうするの?
どうなさいますか
どうなっているの?
どうなっているの?
What kind of thing is that?