Mastic

The island of Scio is now called by the Greeks Kio [Χιο], the antient Greek name of it was Chios [Χιος]; it was first called Ætalia in very antient times, and also Mastic, on account of the great number of mastic trees that were in this island.

Source: wiktionary

The mastic, of which the people of Scio gather every year an incredible quantity, is a very rich gum, made use of in medicines, which distils from a shrub called, in Latin, Lentiscus.

Source: wiktionary

Having taken upon me to order the repast, and knowing that Lord Byron, for the last two days, had done nothing towards sustenance, beyond eating a few biscuits and (to appease appetite) chewing mastic, I desired that we should have a good supply of, at least, two kinds of fish.

Source: wiktionary

1834, James Augustus St. John, Egypt and Mohammed Ali, or Travels in the Valley of the Nile, London: Longman, Rees, Orme, Brown, Green & Longman, Volume I, Chapter 132, pp. 322-323, […] in many harems, the women are in the habit of burning mastic on a small chaffing-dish, and holding the mouth of the jars over the smoke; by which means they communicate to them a scent which perfumes the water for eight or ten days, at the expiration of which the operation must be repeated.

Source: wiktionary