Word Origin and History for pigment Expand. n. late 14c., from Latin pigmentum coloring matter, pigment, paint, figuratively prnament, from stem of pingere to color, paint (see paint (v.)). Variants of this word could have been known in Old English (e.g. 12c. pyhmentum). As a verb from 1900.
Vegetable oils are oils that have been extracted from various seeds. The most common include rapeseed (canola oil), soybean, corn, sunflower, safflower, peanut, etc. Unlike coconut oil or olive oil that can be extracted by pressing, these new-fangled oils have to be extracted in very unnatural ways.
Prior to this invention, oils were all processed by mechanical means, with a press. Third, government subsidies helped farmers grow vegetables for oil. This, in turn, made the oils cheaper for the consumer. Generally, vegetable oils are made from a mix of canola, soybean, corn, sunflower and safflower oils. The process of extraction involves many chemicals, and some manufacturers add coloring or bleach the oil to make it looks more appealing and uniform. Effectively, it's a highly processed food product.