mortally

the adverb 'mortally' is built upon the adjective 'mortal', which traces its lineage directly to latin mortalis, meaning 'subject to death'. this, in turn, derives from mors (genitive mortis), the latin word for 'death', a term with deep proto-indo-european roots. the suffix '-ly', of old english origin, is a standard grammatical tool for converting adjectives into adverbs. thus, the literal construction 'in a death-like manner' evolved to describe actions leading to death and, by figurative extension, actions or states of extreme intensity.

Structure: mortal + ly mortal (from latin mortalis, meaning 'subject to death', from mors 'death'); ly (from old english -līce, an adverbial suffix forming adverbs from adjectives).