Where does “photosensitiveness” come from?
photosensitiveness (English) comes from English photosensitive, from English sensitive, from Middle French sensitif, from Medieval Latin sensitivus, from Latin sentio, from Proto-Italic sentjō, from Proto-Indo-European sent-, from Proto-Indo-European h₁es- — to be.
photosensitiveness (English): Photosensitivity
Ancestry of “photosensitiveness”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | photosensitive | having a reaction to, or able to be affected by,... |
| 2 | English | sensitive | Having the faculty of sensation; pertaining to... |
| 3 | Middle French | sensitif | — |
| 4 | Medieval Latin | sensitivus | sensitive; detectable, perceivable |
| 5 | Latin | sentio | I feel, I sense, I perceive; I perceive, I am... |
| 6 | Proto-Italic | sentjō | — |
| 7 | Proto-Indo-European | sent- | to head for, to go, to travel; to feel |
| 8 | Proto-Indo-European | h₁es- | to be |