The compound adjective 'strong-armed' is a relatively modern formation, drawing on two ancient Germanic roots. The first element, 'strong', originates from a Proto-Germanic word conveying notions of tightness, severity, and power. The second, 'arm', refers literally to the limb but has long been used metaphorically to signify force, as in 'armed and dangerous' or 'the long arm of the law'. The suffix '-ed' attaches to the noun phrase to create an adjective meaning "possessing strong arms." The term's evolution into its current abstract meaning—using coercive force or threats—is a logical semantic shift, where the physical attribute of powerful limbs became a metaphor for aggressive, bullying behavior. This figurative use solidifies the word's role in describing intimidation tactics.

Structure: strong (having power) + arm (limb/weapon) + ed (adjective suffix) - strong: From Old English strang, meaning powerful, severe, strict. Germanic origin. - arm: From Old English earm, ærm, meaning the upper limb of the body. Also used figuratively for power or weapon. Germanic origin. - ed: A suffix forming adjectives from nouns or verbs, meaning "having" or "characterized by." Old English origin.