english: You could use {{defdate}} and perhaps {{lb|la|erroneously translated}} or {{lb|la|la|in mistranslation}}, but there may be some other convention.
non_english: qqqqqqqqqqqqqq qq qqqqq qqq qqq qqqqqqq qqqqqqqqqqqqqqqqqqqqqqq qqqññññññññññññññññññññññññññññññññññññññññññ ñññññññññññññññññññññññ