Where does “insightful” come from?

Insightful is formed from insight plus the Old English suffix -ful, derived from Proto-Germanic fullaz meaning full, ultimately from Proto-Indo-European pleh₁- meaning to fill.

insightful (English): Possessing insight

Definitions

  1. Possessing insight

Ancestry of “insightful”, step by step

StepLanguageWordMeaning
1EnglishinsightA sight or view of the interior of anything; a...
2Middle Englishinsight
3Old Englishinsihtnarrative, account; argument
4Proto-Germanicinsahtizaccount, narrative; discussion, argument
5Proto-Germanicinin; into
6Proto-Indo-Europeanénin

Words derived from “insightful

Every word from Proto-Indo-European énEvery word from Proto-Germanic inEvery word from Proto-Germanic insahtiz