Where does “*saptatí” come from?

*saptatí (Proto-Indo-Iranian) comes from Proto-Indo-European septḿ̥dḱomt, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “*saptatí”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanseptḿ̥dḱomtseventy
2Proto-Indo-Europeanseptḿ̥seven

Words derived from “*saptatí

Every word from Proto-Indo-European septḿ̥Every word from Proto-Indo-European septḿ̥dḱomt