The word 'toxicologist' is built upon the ancient Greek concept of poison, originally linked to archery. The Greek toxikon pharmakon meant "poison for smearing on arrows," with toxikon relating to toxon (bow). This term passed into Latin as toxicum (poison). The suffix -logist, from Greek -logia (study of), denotes a specialist. Therefore, a toxicologist is literally "a specialist in the study of poisons," tracing a direct line from the concrete image of arrow poison to the modern scientific discipline of toxicology.

Structure: toxico (poison) + logist (one who studies a subject) - toxico: From Greek toxikon (poison for arrows), via Latin toxicum. In this word, it functions as the root meaning "poison." - logist: From Greek -logistēs, derived from logos (word, reason, study). It is a suffix meaning "a person who studies or is an expert in a specific field."