mr: Marathi language
Verify this language code:
✔ mr is a well-formed language code. 
✔ This seems to be a code for an actual language.
✔ This language code is enabled on Translatewiki.
MediaWiki core messages: 62.04 %: 2435 / 3925 messages
Most important messages: 82.01 %: 474 / 578 messages
Collection extension: 1.69 %: 3 / 178 messages
ProofreadPage extension: 57.84 %: 107 / 185 messages
Android Wikipedia app: 10.96 %: 240 / 2189 messages
iOS Wikipedia app: 7.87 %: 142 / 1804 messages
Main extensions used by Wikimedia: 25.98 %: 1851 / 7125 messages
Most important messages: 82.01 %: 474 / 578 messages
Collection extension: 1.69 %: 3 / 178 messages
ProofreadPage extension: 57.84 %: 107 / 185 messages
Android Wikipedia app: 10.96 %: 240 / 2189 messages
iOS Wikipedia app: 7.87 %: 142 / 1804 messages
Main extensions used by Wikimedia: 25.98 %: 1851 / 7125 messages
✔ This language code is available for general use in MediaWiki.
✔ This language is available for general use on Wikidata.