Where does “especially” come from?

Especially comes from Middle English -ly added to Latin specialis, itself from Latin specio with the suffix -alis, ultimately from Proto-Indo-European ḱóm with Latin -alis.

especially (English): In a special manner; specially; Particularly; to...

Definitions

  1. In a special manner; specially; Particularly; to...

Ancestry of “especially”, step by step

StepLanguageWordMeaning
1EnglishespecialExceptional in importance or significance;...
2Middle Englishespecial
3Old Frenchespecialspecial; powerful; mighty
4Latinspecialisspecific
5Latinspeciēsseeing, view, look
6Latinspeciōto observe, watch, look at
7Proto-Italicspekjōto observe, to see
8Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
9Proto-Indo-Europeanspeḱ-to see, to look, to observe
Every word from Proto-Indo-European speḱ-