Where does “indefeasible” come from?

Indefeasible derives from English defeasible, prefixed with in- from Latin, ultimately tracing through Latin de- and in- to Proto-Indo-European roots ne and oyd-.

indefeasible (English): Not liable to being annulled or declared void

Definitions

  1. Not liable to being annulled or declared void

Ancestry of “indefeasible”, step by step

StepLanguageWordMeaning
1Englishin-in, into, towards, within; in, into; Used with...
2Middle Englishin-
3Old Englishin-in, into; on, upon; internal, positioned on the...
4Old Englishinin; Alternative form of inn
5Proto-West Germanic*in
6Proto-Germanicinin; into
7Proto-Indo-Europeanénin

Words derived from “indefeasible

Every word from Proto-Indo-European énEvery word from Proto-Germanic inEvery word from Proto-West Germanic *in