1) A heifer, or a young cow up to three years old that has not calved.
The OED headword is quey, a spelling which I have not yet been noted in Yorkshire: 1455 j blake qwy, Bossall
1485 I will that Elyne Peke have a quye, Ripon
1559 one quye to be kepte of the cost and charges of my Executors unto ... fully thre yeares olde and upward, Wombwell
1600 two heffers prassed to Ł3 6s 8d, Marrick
1616 6 quhyes bought whereof the biggest tow branded cost Ł4 5s, Brandsby
1662 Thomas Brockhole ... bred att Thorne a redd quy with a little white under her belly which will bee att Christmas next about three yeares old ... will calve ... he verily believes about tenne daies hence.