CONNECT
THE WHOLE
FAMILY.

English intelligent adapts the Latin participial stem intelligent- with English stress, vowel, and final-consonant treatment.

intelligēns is the present participial formation of intellegere / intelligere.

Latin intellegere is traditionally analyzed as inter- plus legere, with phonological assimilation.

Latin legere is traditionally assigned to the *leǵ- family; *sleǵ- remains a published alternative.

Greek λέγω is traditionally derived from PIE *leǵ-; some scholarship argues that an initial *s should be reconstructed.

λόγος is a verbal noun in the λέγω family, with an o-grade formation represented in traditional analysis.

Greek ἐτυμολογία contains the -λογία formation belonging to the λόγος family.

Latin borrowed Greek ἐτυμολογία.

Old French transmitted the learned Latin form.

English adapted the learned French form and later aligned spelling with the classical model.