The word 'strapping' originates from the verb 'to strap', meaning to fasten or bind with a strip of strong material. By the late 17th century, the present participle form 'strapping' began to be used adjectivally. Its application evolved from describing something secured with straps to figuratively characterizing a person as robust, sturdy, and well-put-together, as if tightly bound with strength. This semantic shift reflects a metaphorical link between the toughness of binding material and the vigorous physique of a healthy individual.

Structure: strap (to bind) + ping (adjective-forming suffix) - strap: From English 'strap' (a narrow strip of leather or other material), itself of uncertain origin, possibly from a Germanic base. In this compound, it conveys the sense of something strong and binding. - ping: A suffix forming participial adjectives, often with an active or intensive sense, from the Old English present participle ending '-ende'. Here, it creates an adjective meaning "having the quality of" or "characterized by".