What is the meaning of иже?

who (relative pronoun)

which, that (relative pronoun)

wherewith, by whom (instrumental case)

whereunto, wherein, whither (accusative case)

what (genitive case)

whereon (prepositional case)

who, which, that (relative pronoun)

which; et cetera

izhe, Church Slavonic name of the Cyrillic letter и

Source: wiktionary.org