'sound-resistant' originates from the combination of 'sound' and 'resistant', where 'sound' refers to vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear, and 'resistant' means having the ability to withstand something.

'Sound-resistant' is a modern English term formed by combining 'sound' and 'resistant', reflecting the need for materials or structures that can block or reduce sound.

Initially, it meant 'capable of resisting sound', and this meaning has remained consistent in modern usage.