Where does “petrina” come from?
petrina (Old Spanish) comes from Vulgar Latin pectorina, from Latin pectus, from Proto-Italic pektos, from Proto-Indo-European peg-, from English polyethylene glycol — Any of a series of water-soluble polymers, of...
Ancestry of “petrina”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Vulgar Latin | pectorina | — |
| 2 | Latin | pectus | chest, breast; heart, breast, as the seat of... |
| 3 | Proto-Italic | pektos | — |
| 4 | Proto-Indo-European | peg- | breast |
| 5 | English | polyethylene glycol | Any of a series of water-soluble polymers, of... |