myEtymology.com: Greek etymology of tautologos

Etymology of the Greek word tautologos

the Greek word tautologos

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)

using the Greek prefix tauto-, ταὐτο-