This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. a cover or shield for a finger.

n. a sheath worn to protect a finger.

n. A cover or cot worn on a finger to protect it, as when injured, or in dissecting, etc.

n. a sheath worn to protect a finger

"Here and there, on the dry bank over which the clematis projected like an eave, there stood tall campanulas, their blue bells as large as the fingerstall of a foxglove."

sheath   

cot