Where does “Sadu” come from?

Sadu (Proto-Austronesian) comes from Pali sādhu, from Sanskrit साधु, from Proto-Indo-Aryan *sáHdʰuṣ, from Proto-Indo-Iranian sáHdʰuš, from Proto-Indo-European séHdʰ-u-s, from Proto-Indo-European -us — Forms adjectives from Caland system roots.

Ancestry of “Sadu”, step by step

Sadu traces back through 3 separate lines of ancestry.

via Pali sādhu

StepLanguageWordMeaning
1Palisādhuwell
2Sanskritसाधुstraight, right; leading straight to a goal,...
3Proto-Indo-Aryan*sáHdʰuṣ
4Proto-Indo-IraniansáHdʰušsuccessful, accomplished
5Proto-Indo-EuropeanséHdʰ-u-s
6Proto-Indo-European-usForms adjectives from Caland system roots

via Russian сад

StepLanguageWordMeaning
1Russianсадgarden, orchard; park, garden
2Proto-Slavicsadъplant, garden
3Finnishsadashundredth; Second-person singular imperative...
4Proto-Finnicsadachundredth
5Proto-Slavic*sǫdakъzander; any fish of the genus Sander

via Tarifit adu

StepLanguageWordMeaning
1Tarifitaduunder

Words derived from “Sadu

Every word from Proto-Indo-European -usEvery word from Proto-Indo-European séHdʰ-u-sEvery word from Proto-Indo-Iranian sáHdʰuš