Where does “indoor” come from?
indoor (Italian) comes from English indoor, from English door, from Middle English dore, from Old English dora, from Proto-Germanic durô, from Proto-Indo-European dʰer- — to support; to hold.
indoor (Italian): indoor
Ancestry of “indoor”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | indoor | Situated in, or designed to be used in, or... |
| 2 | English | door | A portal of entry into a building, room, or... |
| 3 | Middle English | dore | — |
| 4 | Old English | dora | bumblebee |
| 5 | Proto-Germanic | durô | bumblebee, humming insect |
| 6 | Proto-Indo-European | dʰer- | to support; to hold |