cornet

What it means

1. A musical instrument of the brass family, slightly smaller than a trumpet, usually in the musical key of B-flat.

   Synonyms: cornet-à-piston, cornet-à-pistons

2. A piece of paper twisted to be used as a container.
3. An ice cream cone (the shell itself).

In a sentence

They discerned a body of five cornets of horse very full, standing in very good order to receive them.

1702–1704, Edward [Hyde, 1st] Earl of Clarendon, (please specify |book=I to XVI), in The History of the Rebellion and Civil Wars in England, Begun in the Year 1641. […], Oxford, Oxfordshire: Printed at the [Sheldonian] Theater

Where it comes from

1. Latincornū“horn”
2. Old Frenchcornet
3. Middle Englishcornet
4. Englishcornet

From Middle English cornet, from Old French cornet, a diminutive of a popular reflex of Latin cornū (“horn”).