The word 'tyrosine' was coined in the mid-19th century from the Greek 'tyros', meaning 'cheese', combined with the chemical suffix '-ine'. This nomenclature directly reflects the substance's origin, as it was first isolated in 1846 by German chemist Justus von Liebig from the protein casein found in cheese. The logical progression is literal: from the Greek word for the food source (cheese) to the name of a specific chemical component extracted from it. The suffix '-ine' is standard in chemistry for denoting basic substances, particularly alkaloids and amino acids, thus solidifying its identity as a distinct organic compound.

The word is a modern scientific formation from Greek, treated as a simplex unit in English. It is not productively segmented into meaningful subparts using its current English spelling.