indefectibly

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *ən- Latin in-bor. Middle English in- English in- Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin de- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰeh₁k- Proto-Indo-European *-yéti Proto-Indo-European *dʰh₁kyéti Proto-Italic *θakjō Proto-Italic *fakjō Latin facio Latin dēficiō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin dēfectusbor. English defect Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ibilis Old French -ibleder. Middle English -ible English -ible English indefectible Proto-Indo-European *leyg- Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Old English -līċe Middle English -ly English -ly English indefectibly From indefectible + -ly.

1. 01
   derived from *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Old English -līċe Middle English -ly English -ly English indefectibly From indefectible + -ly✻
2. 02
   derived from -ible English -ible English indefectible Proto-Indo-European *leyg- Proto-Germanic *līkąder
3. 03
   derived from defect Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ibilis Old French -ibleder
4. 04
   derived from in- English in- Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin de- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰeh₁k- Proto-Indo-European *-yéti Proto-Indo-European *dʰh₁kyéti Proto-Italic *θakjō Proto-Italic *fakjō Latin facio Latin dēficiō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin dēfectusbor
5. 05
   derived from *né Proto-Indo-European *n̥- Proto-Italic *ən- Latin in-bor✻