The story
- Ancient Greek · derived fromὀρθός“straight”
- English todayorthotonos
From Ancient Greek ὀρθός (orthós, “straight”) + τόνος (tónos, “tension”). See further at opisthotonos.
Words from the same roots
Ancient Greekὀρθός all →
ortho-orthoepyOrthogonianorthomorphicorthopedia
Etymology from Wiktionary, CC BY-SA 4.0.