Manual:$wgInterlanguageLinkCodeMap

Language, regional and character encoding settings: $wgInterlanguageLinkCodeMap
Map of interlanguage link codes to language codes to override what is shown as the language name when the interwiki code does not match it exactly.
Introduced in version:1.35.0 (Gerrit change 530768; git #c919b04f)
Removed in version:still in use
Allowed values:Interlanguage link codes mapped to language codes.
Default value:[]