adverb
fatally, mortally
Etymology tree Proto-Indo-European *mer- Proto-Indo-European *-tis Proto-Indo-European *mértis Proto-Italic *mortis Latin mors Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālis Latin mortālis Spanish mortal Proto-Indo-European *men- Proto-Indo-European *-tis Proto-Indo-European *méntis Proto-Italic *mentis Latin mēns Old Spanish -mente Spanish -mente Spanish mortalmente From mortal + -mente.