I can image the moment Sir William Jones realized Sanskrit and Latin had a common origin. "Wait a minute...these can't all be coincidences." It's pretty mid-blowing.

My daughters are growing up bilingual in Persian and English. Totally fascinating to find the cognates; many are surprisingly close still (daughter/dokhtar, star/setare, cow/gav). It’s fun feeling like I could communicate basic ideas to a proto Indo European speaker based on those really distant cognates.

English: God gave us teeth; God will give us bread.

Lithuanian: Dievas davė dantis; Dievas duos duonos.

Sanskrit: Devas adadat datas; Devas dat dhanas.