defectology

Etymology tree 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 Ancient Greek -ο- (-o-)der. Latin -o-bor. English -o- Proto-Indo-European *leǵ- Ancient Greek λόγος (lógos) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (-ĭ́ā) Ancient Greek -λογῐ́ᾱ (-logĭ́ā)bor. Latin -logialbor. French -logiebor. English -logy English -ology English defectology From defect + -ology.

1. 01
   derived from -logy English -ology English defectology From defect + -ology
2. 02
   derived from -logiebor
3. 03
   derived from -logialbor
4. 04
   derived from -o-bor
5. 05
   derived from *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✻