pronoun
where; what place
Formal or literary interrogative pronoun meaning 'where'. In modern Japanese, どこ is the standard equivalent.
那辺に問題があるのか、慎重に検討する必要がある。
We need to carefully examine where the problem lies.
この道は那辺へ通じているのだろうか。
I wonder where this road leads.
Compound of classical interrogative な (what) and 辺 (vicinity, direction), meaning 'what place'. The kanji 那 and 奈 are ateji used for their sound.