| Language | Reflex(es) | Gloss | Grammar | Sources |
|---|
| English |
| English | dysarthria | dyslalia, lack of distinct articulation | n | AHD CDC LRC |
| English | dys- | bad, abnormal | pfx | AHD W7 LRC |
| English | dyslexia | impaired ability to recognize/comprehend writing | n | AHD LRC |
| English | dysmenorrhea | painful/difficult/laborious menstruation | n | AHD CDC LRC |
| English | dysplasia | abnormal cell/organ/tissue growth/development | n | AHD LRC |
| Old English | tō-, te- | apart | pfx | W7 LRC |
| Middle English | dis- | dys-, difficult | pfx | W7 LRC |
| Celtic |
| Old Irish | du-, do- | dys-, un-, ill-, mis- | pfx | RPN LRC |
| East Germanic |
| Gothic | tuz- | dys-, un-, ill-, mis- | pfx | RPN LRC |
| Italic |
| Latin | dys- | dys- | pfx | W7 LRC |
| Middle French | dis- | dys-, difficult | pfx | W7 LRC |
| Balto-Slavic |
| Old Church Slavonic | dъž- | dys-, un-, ill-, mis- | pfx | RPN LRC |
| Hellenic |
| Greek | δυσ- | dys-, un-, ill-, mis- | pfx | RPN LRC |
| Armenian |
| Armenian | t- | un-, ill-, mis- | pfx | RPN LRC |
| Indo-Iranian |
| Avestan | duš-, duž- | dys-, un-, ill-, mis- | pfx | RPN LRC |
| Sanskrit | dúṣyati | to turn bad, be defiled | vb | RPN LRC |
| Sanskrit | dus-, dur- | dys-, un-, ill-, mis-, difficult | pfx | W7 LRC |
| Sanskrit | doṣa-ḥ | crime, vice, want | n | RPN LRC |