According to a common formulation of the distinction between morphology and syntax, "morphology" deals with the internal structure of words and "syntax" with the rules governing their combination in sentences. [...] Etymologically speaking, "morphology" is simply "the study of forms" and syntax the theory of "putting together".
- Lyons (2004), a pag.14

It was in the nineteenth century that the term "morphology" was introduced into linguistics to cover both inflexion and derivation.
- Lyons (2004), a pag.15