Where does “*haptatí” come from?

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

Ancestry of “*haptatí”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iranian*saptatí—
2Proto-Indo-Europeanseptḿ̥dḱomtseventy
3Proto-Indo-Europeanseptḿ̥seven

Words derived from “*haptatí”

Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Indo-European septḿ̥dḱomt →Every word from Proto-Indo-Iranian *saptatí →