Where does “Hwā́stu” come from?

Hwā́stu (Proto-Indo-Aryan) comes from Proto-Indo-Iranian Hwā́stu, from Proto-Indo-European h₂wóstu, from Proto-Indo-European h₂wes- — to dwell, live, reside; to stay, spend the night.

Ancestry of “Hwā́stu”, step by step

StepLanguageWordMeaning
1Proto-Indo-IranianHwā́stu—
2Proto-Indo-Europeanh₂wóstuhome, dwelling
3Proto-Indo-Europeanh₂wes-to dwell, live, reside; to stay, spend the night
Every word from Proto-Indo-European h₂wes- →Every word from Proto-Indo-European h₂wóstu →Every word from Proto-Indo-Iranian Hwā́stu →