Where does “specious” come from?

Specious derives from Latin speciosus, formed from Latin specio and the suffix Latin -osus, ultimately from Proto-Indo-European speḱ-, meaning to observe or look.

specious (English): Seemingly well-reasoned, plausible or true, but...

Definitions

  1. Seemingly well-reasoned, plausible or true, but...

Ancestry of “specious”, step by step

specious traces back through two separate lines of ancestry.

via English Species

StepLanguageWordMeaning
1EnglishSpeciesA type or kind. Compare
2Latinspeciēsseeing, view, look
3Latinspeciōto observe, watch, look at
4Proto-Italicspekjōto observe, to see
5Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
6Proto-Indo-Europeanspeḱ-to see, to look, to observe

via Middle English speciose

StepLanguageWordMeaning
1Middle Englishspeciose

Words derived from “specious

Every word from Proto-Indo-European speḱ-