ব্যাখ্যা:
i) Morphology- the study of the forms of words, in particular inflected forms.
ii) Etymology- the study of the origin of words and the way in which their meanings have changed throughout history.
iii) Syntax- the arrangement of words and phrases to create well-formed sentences in a language.
iv) Semantics – the branch of linguistics and logic concerned with meaning.
Source: Oxford Languages