fell

The verb 'fell' meaning "to cut down" originates from Old English fellan, "to cause to fall," which is the causative form of the verb feallan, "to fall." This causative formation, common in Germanic languages, creates a transitive verb meaning "to make something else fall." The adjective 'fell', meaning "fierce or deadly," entered English from Old French fel (cruel, fierce), tracing back to Latin fello, fellonis (villain, evildoer). Despite their identical spelling and pronunciation, these two words represent a classic case of homonymy, where distinct historical roots have converged into a single modern form. The semantic thread connecting them is the concept of bringing down, whether physically (a tree) or metaphorically (an enemy with fierce force).

This word is a simplex form. As a verb, it is the past tense of 'fall', but as a standalone verb and adjective, it has a distinct etymology and usage.