The word synthesise is built from Greek elements that literally mean "to put together". The prefix syn- (together) combines with the root thes-, derived from the Greek verb tithenai (to place, to set). This core concept of placing elements together was used in ancient Greek philosophy and rhetoric. As it passed through Latin and into English, acquiring the verb-forming suffix -ise, its meaning evolved from a physical act of assembly to the abstract intellectual process of combining ideas or the scientific process of creating compounds from simpler substances. Thus, the modern meaning retains the original logic of its parts: bringing separate components into a unified whole.

Structure: syn (together) + thes (to put, to place) + ise (verb-forming suffix) syn: A prefix of Greek origin meaning "together, with". thes: A root of Greek origin from the verb tithenai, meaning "to put, to place". ise: A verb-forming suffix of Greek origin via Latin and French, indicating "to make, to act, to practice".