和英辞書

いずこ

pron

(archaic) indefinite interrogative pronoun: where, whence, whither, which / (archaic, after a particle) indefinite demonstrative pronoun: anywhere, everywhere, somewhere

いずこに行くべきか分からない。

I don't know where to go.

意味（1）

(archaic) indefinite interrogative pronoun: where, whence, whither, which

おもしろき所(ところ)に船(ふね)を寄(よ)せて「こゝや何(いづ)処(こ)」と問(と)ひければ「土(と)佐(さ)の泊(とまり)」と言(い)ひけり。

Omoshiroki tokoro ni fune o yosete, “koko ya izuko,” to toikereba, “Tosa-no-tomari” to iikeri.As the boat arrived at some fascinating place I asked, “Whither here?” He said, “Tosa Harbor”.

意味（2）

(archaic, after a particle) indefinite demonstrative pronoun: anywhere, everywhere, somewhere

夏(なつ)の夜(よ)はまだ宵(よひ)ながらあけぬるを雲(くも)のいづこに月(つき)やどるらむ

natsu no yo wa mada yoi nagara akenuru o kumo no izuko ni tsuki yadoruranThe summer night dims as evening hours have not yet passed―somewhere in the clouds the moon takes her refuge.