The term Bieszczady was introduced into English from Polish. In Poland, the term usually refers (in narrower sense) to the Polish part of the Bieszczady region, while in wider sense it can also refer to the entire region. In Slovakia, the Bieszczady region is known as Beščady (), while Slovak part of the region is called Bukovec Mountains (). In Ukraine, the Bieszczady region is also known as Beščady (), while various parts of the region often have two or more name variants (unstable terminology), usually containing the word Beščady in combination with some other terms. Historically, the terms Bieszczady or Beščady (Бещади) have been used for hundreds of years to describe the mountains separating from the old Kingdom of Hungary into Poland. In 1269, they were known by the Latin name Beschad Alpes Poloniae (translated as: Bieszczady Mountains of Poland).