The Spanish word 'burka' comes from Arabic 'burqu'' (بُرْقُع), which referred to a face veil. The word entered Spanish through English 'burka', where it came to specifically refer to the full-body covering garment worn by some Muslim women that includes a mesh screen or grille over the face area. This is an example of semantic narrowing, where the general Arabic term for a face veil came to refer to a specific type of full-body covering.

There are no common Spanish words that are etymologically related to 'burka', as it is a relatively recent borrowing from English/Arabic that specifically refers to this type of religious garment.

The English word 'burka' (also spelled 'burqa') is identical to the Spanish word, as Spanish borrowed it from English. In English, like in Spanish, it refers specifically to the full-body covering with a mesh screen over the face. The word has become internationally recognized in this specific meaning, though it originated from the more general Arabic term for a face veil.