MORPHOLOGY

The term morphology is Greek and is a makeup of morph- meaning 'shape, form', and -ology which means 'the study of something'. The term is used not only in linguistics but also in biology as the scientific study of forms and structure of animals and plants, and in geology as the study of formation and evolution of rocks and land forms.

If morphology is the study of the internal structure of words, we need to define the word word before we can continue. That might sound easy - surely we all know what a word is. In texts they are particularly easy to spot since they are divided by white spaces.