Blonde Girl With Blue Eyes Strips A Tartan Skirt And Other Clothes On The Couch In The Living Room

Etymology and terminology
The English word tartan is derived from the French tiretain. This French word is probably derived from the verb tirer in reference to woven cloth (as opposed to knitted cloth). Today tartan usually refers to coloured patterns, though originally a tartan did not have to be made up of any pattern at all. As late as the 1830s tartan was sometimes described as "plain coloured ... without pattern". Patterned cloth from the Gaelic speaking Scottish Highlands was called breacan, meaning many colours. Over time the meanings of tartan and breacan were combined to describe certain type of pattern on a certain type of cloth. The pattern of a tartan is called a sett. The sett is made up of a series of woven threads which cross at right angles.
Today tartan is generally used to describe the pattern, not limited to textiles. In America the term plaid is commonly used to describe tartan. The word plaid, derived from the Scottish Gaelic plaide, meaning "blanket", was first used of any rectangular garment, sometimes made up of tartan, particularly that which preceded the modern kilt (belted plaid). In time, plaid was used to describe blankets themselves.