What is the derivation of word when used to name a strong fabric?

The word "cord" as used to describe a strong fabric derives from the Old French word "corde," meaning "rope" or "string."

This connection stems from the fact that strong fabrics, like corduroy, are often made with thick, rope-like threads woven together.

Here's a breakdown of the linguistic journey:

* Old French: "corde" (rope, string)

* Middle English: "corde" (rope, string)

* Modern English: "cord" (rope, string)

Over time, the word "cord" expanded its meaning to encompass not just the material itself but also fabrics made from these thick threads.

Therefore, the word "cord" in fabrics refers to its strength and resemblance to rope or string.