πότερον póteron

Meaning

interrogative as adverb, which (of two), i.e. is it this or that

In the King James Version: whether

Derivation: neuter of a comparative of the base of G4226 (ποῦ);

Where it is used

• John 7:17 If anyone desires to do His will, he will know whether My teaching is from God or whether I speak on My own.