Where does “ultrassom” come from?
ultrassom (Portuguese) comes from Portuguese som, from Old Portuguese son, from Latin sunt, from Latin sum, from Proto-Italic ezom, from Proto-Indo-European h₁ésmi, from Proto-Indo-European h₁ēs-.
ultrassom (Portuguese): ultrasound
Ancestry of “ultrassom”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Portuguese | som | sound |
| 2 | Old Portuguese | son | — |
| 3 | Latin | sunt | third-person plural present active indicative of... |
| 4 | Latin | sum | to be, exist, have; to be there; to go |
| 5 | Proto-Italic | ezom | to be |
| 6 | Proto-Indo-European | h₁ésmi | first-person singular present indicative of... |
| 7 | Proto-Indo-European | h₁ēs- | — |