myEtymology.com: Latin etymology of -logus

Etymology of the Latin suffix -logus

the Latin suffix -logus

derived from the Greek suffix -logos, -λόγος

derived from the Greek word logos, λόγος (word, speech, topic, treatise, reasoning)

derived from the Greek word legein, λέγω (to speak)

derived from the Proto-Indo-European root *leg- (to collect, to speak)