Other forms: ponies
A pony is a horse of a small breed. A Shetland pony, ride a pony, pony trekking.
The line is drawn by height: under fourteen point two hands is a pony and above it a horse, though the breeds differ in build as well. Ponies are stronger for their size than horses. In British slang a pony is twenty-five pounds. Note that the word came from a French word for a little foal.
1nounponyA horse of a small breed.
“The little girl rode a pony at the farm.”
pony is an animal.
Scots powny comes from a French word meaning a little foal, from Latin pullus, the young of an animal. Foal is a relative.
Scots
powny
English, today
pony
From Scots powny. From Scots powny, apparently from Middle French poulenet (“little foal”), ultimately from Latin pullanus (“young of an animal”), from pullus. 1659. a doublet of foal and pullus. Sense “small serving of alcohol” from 19th century, both for small sizes generally and for a quarter pint specifically, from the small size.Notes and Queries, August 8th, 1896, [https://books.google.com/books?id=BIEj
Etymology from Wiktionary, CC BY-SA