The word 'synonym' has a transparently logical construction from its Greek components. It originates from the Greek 'synōnymon', a compound of 'syn-' (meaning 'together, same') and '-ōnyma' (a form of 'onoma', meaning 'name'). The literal meaning is thus "having the same name." This concept entered Late Latin as 'synonymum' before being adopted into English. The evolution from the concrete idea of "same name" to the modern abstract linguistic meaning of "word with the same meaning" is a direct and intuitive semantic shift, perfectly capturing the relationship between two different words that share a common semantic identity.

Structure: syn (same) + onym (name) 'syn' is from Greek, meaning 'together, same, with'. 'onym' is from Greek 'onoma', meaning 'name'.