Where does “tanistry” come from?

tanistry (English) comes from English tanist, from Irish tánaiste, from Old Irish tánaiste.

tanistry (English): A form of tenure, in ancient Scotland and...

Definitions

  1. A form of tenure, in ancient Scotland and...

Ancestry of “tanistry”, step by step

tanistry traces back through two separate lines of ancestry.

via English tanist

StepLanguageWordMeaning
1EnglishtanistThe heir presumptive to the chieftainship or...
2Irishtánaistetanist, heir presumptive; deputy prime minister;...
3Old Irishtánaiste

via English ry

StepLanguageWordMeaning
1EnglishryA test pattern consisting of a repeating character string alternating letters R and Y, used to test five-level teleprinter and radioteletype (RTTY) systems
Every word from Old Irish tánaisteEvery word from Irish tánaisteEvery word from English tanist