Benzyls

Part of speech: noun

Definitions

1. Univalent chemical radicals made from toluene by removing one hydrogen atom from its methyl group, forming compounds of the C6H5CH2 group
2. Chemical groups consisting of a phenyl ring attached to a methylene unit, which are found in many organic compounds and derivatives
3. Substituent groups built from a benzene ring bonded to a CH2 unit, commonly appearing in organic chemistry as parts of larger molecules

Etymology: Benzyl is a chemical term, so its history is a matter of naming rather than storytelling. The word is built from "benz-", a shortened form of "benzoin", plus the suffix "-yl", which chemists use to name a group of atoms that behaves as a unit inside a larger molecule. The "-yl" ending is the regular pattern for such groups, so the word simply announces a fragment of that kind. The older root, benzoin, has a longer trail. It descends from the Arabic "lubān jāwiyy", meaning "Javanese incense", referring to a resin traded from Java and the surrounding islands. Arabic-speaking traders carried it westward, and the name passed through Catalan "benjuí" and Middle French "benjoin" before reaching English as "benzoin". The resin's sweet, vanilla-like smell is what gave the family of chemical names its start. Because the "-yl" suffix was attached to the shortened "benz-", benzyl is a modern coinage from the chemists' naming system, not an ancient or everyday word.