Byrnyk
Byrnyk is a term that can refer to several things, most notably a type of fruit or a surname. As a fruit, byrnyk is the common name for Vaccinium oxycoccos, also known as the cranberry. These are small, tart, red berries that grow on creeping vines in bogs and marshes. Cranberries are widely cultivated and consumed for their culinary uses, particularly in sauces, juices, and baked goods, and are also recognized for their perceived health benefits.
Alternatively, Byrnyk can be a surname of Eastern European origin, particularly found in Ukraine and Poland.