Where does “κατορθῶ” come from?

κατορθῶ (Ancient Greek) comes from Ancient Greek ὀρθόω, from Ancient Greek ὀρθός, from Proto-Hellenic ortʰwós, from Proto-Indo-European h₃r̥dʰwós, from Proto-Indo-European h₃erdʰ-, from Proto-Indo-European -wós — Creates adjectives from verb stems.

Ancestry of “κατορθῶ”, step by step

StepLanguageWordMeaning
1Ancient GreekὀρθόωTo set upright, raise up; To straighten; To...
2Ancient Greekὀρθόςstraight, upright, erect; straight forward, in a...
3Proto-Hellenicortʰwós
4Proto-Indo-Europeanh₃r̥dʰwós
5Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
6Proto-Indo-European-wósCreates adjectives from verb stems

Words derived from “κατορθῶ

Every word from Proto-Indo-European -wósEvery word from Proto-Indo-European h₃erdʰ-Every word from Proto-Indo-European h₃r̥dʰwós