BY WHAT

Basque

ordutarako (by what hour). (various references)

Finnish

minkä niminen (by what name?), millä oikeudella? (by what right?). (various references)

French

à quel titre? (by what right?). (various references)

German

wodurch (whereby). (various references)

Hungarian

mi jogon? (by what right?). (various references)

Japanese Kanji 

筆禍 (troubles brought on by what one has written), どうも有難う (by what means, how, in what way, it seems like, somehow or other, Thank you). (various references)

Japanese Katakana 

ひっか (troubles brought on by what one has written), どうやって (by what means, how, in what way). (various references)

Pig Latin

ybay atwhay.(various references)

Scottish

cionnas (how, how? in what way or manner? by what means?). (various references)