Where does “jasyteĩ” come from?

jasyteĩ (Paraguayan Guaraní) comes from Paraguayan Guaraní jasy, from Proto-Tupi-Guarani *jatʃɨ, from Proto-Tupian **watɨ — Moon.

Ancestry of “jasyteĩ”, step by step

jasyteĩ traces back through two separate lines of ancestry.

via Paraguayan Guaraní jasy

StepLanguageWordMeaning
1Paraguayan Guaraníjasy—
2Proto-Tupi-Guarani*jatʃɨMoon
3Proto-Tupian**watɨMoon

via Paraguayan Guaraní peteĩ

StepLanguageWordMeaning
1Paraguayan Guaranípeteĩ—
Every word from Proto-Tupian **watɨ →Every word from Proto-Tupi-Guarani *jatʃɨ →Every word from Paraguayan Guaraní jasy →