Definition of etymological in English:

etymological

adjective

  • Relating to the origin and historical development of words and their meanings.

    ‘an etymological dictionary’
    ‘the etymological roots of the word are of interest’
    • ‘Written language often preserves etymological and morphological facts about the vocabulary that are lost in pronunciation.’
    • ‘There is etymological debate surrounding the word.’
    • ‘There are many great etymological books out there that are not listed here.’
    • ‘Apparently my teachers were wrong on the etymological facts.’
    • ‘Lots of the most interesting etymological claims that are bandied about on the internet and in the popular press are bunk.’

Pronunciation

etymological

/ˌɛtɪməˈlɒdʒɪk(ə)l/