According to @Foreverknowledge on the enwp Teahouse, the native spelling of "Pali" is wrong on www.wikipedia.org. According to them "the native name for the Pali language can be spelled पालि (more common) or पाळि (less common) but the current spelling listed on the main page is पाऴि (with a dot below ळ) and that is simply wrong." That first spelling matches with the spelling on the Pali article (and it's the same on the pi.wikipedia article, and I assume that they've spelled the name of their language correctly on their own wikipedia).
This should probably be fixed in l10n/pi.json.