death-dealing

The compound adjective "death-dealing" is a transparent formation from native English elements. Its first element, "death", has a clear Germanic lineage, ultimately from a Proto-Indo-European root meaning "to die". The second element, "deal", originates from an Old English verb meaning to distribute or administer, which evolved to encompass the sense of delivering something, such as a blow. The suffix "-ing" converts the verbal action into an adjectival quality. Thus, the literal logic of "administering or giving out death" directly and vividly conveys the modern abstract meaning of something that is fatal or lethal.

Structure: death (the end of life) + deal (to give out) + ing (adjective suffix) - death: From Old English 'dēaþ', of Germanic origin, related to 'die'. It functions as a noun root meaning "the end of life". - deal: From Old English 'dǣlan', meaning "to divide, distribute, or give out". It functions as a verb root. - ing: A suffix of Old English origin used to form adjectives from verbs, meaning "having the quality of" or "performing the action of".