photoadaptational

Etymology tree Proto-Indo-European *bʰeh₂- Proto-Indo-European *bʰéh₂os Proto-Hellenic *pʰáwos Ancient Greek φᾰ́ος (phắos) Ancient Greek φῶς (phôs) Ancient Greek φωτο- (phōto-)der. English photo- Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Italic *aptos Latin aptus Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Latin -ō Latin apiō ▲ Latin -ō Latin -tō Latin aptō Latin adaptō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Medieval Latin adaptātiōbor. French adaptationbor. English adaptation Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English adaptational English photoadaptational From photo- + adaptational.

1. 01
   derived from adaptō
2. 02
   derived from adaptātiō
3. 03
   borrowed from adaptation
4. 04
   suffixed as adaptational — “adaptation + al”
5. 05
   prefixed as photoadaptational — “photo + adaptational”