Which word refers to a soft and sheer fabric?

The term associated with a soft and sheer fabric is "gossamer." This word is derived from Middle English, where it originally referred to a fine, delicate fabric, often seen in the context of light, airy materials like silk or other fine textiles. Gossamer is often used to describe fabrics that have a translucent quality, allowing light to pass through, which gives them a soft and ethereal appearance.

The other words do not relate to fabric. "Garrulous" refers to someone who is excessively talkative, particularly about trivial matters. "Florid" describes something that is very ornate or flowery, often in writing or design, rather than referring to fabric texture. "Hallow" means to honor as holy, which is entirely unrelated to textiles. Therefore, gossamer is the correct word to describe a soft and sheer fabric.