Where does “abyssally” come from?

abyssally (English) comes from English abyssal, from Medieval Latin abyssalis, from Latin abyssus, from Ancient Greek ἄβυσσος, from Ancient Greek ἀ-, from Proto-Hellenic hə-, from Proto-Indo-European sm̥-, from Proto-Indo-European sem- — together, one.

abyssally (English): To an abyssal, unfathomable extent

Definitions

  1. To an abyssal, unfathomable extent

Ancestry of “abyssally”, step by step

abyssally traces back through two separate lines of ancestry.

via English abyssal

StepLanguageWordMeaning
1EnglishabyssalBelonging to, or resembling, an abyss;...
2Medieval Latinabyssalis
3Latinabyssusan abyss
4Ancient Greekἄβυσσοςbottomless, boundless; unfathomable; bottomless...
5Ancient Greekἀ-The alpha privativum, used to make words that...
6Proto-Hellenichə-same; together
7Proto-Indo-Europeansm̥-one; with, together
8Proto-Indo-Europeansem-together, one

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European sem-Every word from Ancient Greek ἀ-Every word from Proto-Indo-European sm̥-