defectological

English

Etymology

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

Proto-Indo-European *-kos

Proto-Indo-European *-ikos

Proto-Italic *-ikos

Latin -icuslbor.

Old French -iquebor.

Middle English -ic

Proto-Indo-European *h₂el-der.?

Proto-Italic *-ālis

Latin -ālisbor.

Old French -albor.

▲

Latin -ālis

Old French -elbor.

▲

Latin -ālisbor.

Middle English -al

Middle English -ical

English -ical

English defectological

From defectology + -ical.

Adjective

defectological (not comparable)

Relating to defectology.
- 1987, Cecil R. Reynolds, Lester Mann, Encyclopedia of Special Education, volume 3, page 1470:
  Nearly 3000 special educators are working in special schools; 520 of them have defectological preparation. Specialists for Uzbekistan are trained at defectological institutes in Moscow, Leningrad, Kiev, Sverdlowsk, and Minsk.