IPA: /dɪˈrɪveɪʃənl/
KK: /dɪˈrɪveɪʃənl/
Relating to the process of forming new words or forms from existing ones.
In linguistics, derivational morphemes change the meaning or grammatical category of a word.
Derivational → It is formed from "derivare" (meaning to draw off or to lead away) and the suffix "-al" (meaning relating to). The word "derivational" refers to something that relates to the process of deriving or drawing off from a source.
Think of 'drawing off' from a source ('derivare') to remember that 'derivational' relates to the process of deriving.