Where does “SELCAL” come from?
SELCAL (English) comes from English calling, from English -ing, from Old English -ing, from Old English -tūn, from Old English tūn, from Proto-West Germanic tūn, from Proto-Germanic tūną, from Gaulish dunum — smoke; mist, haze.
SELCAL (English): A system for alerting a specific aircraft that a radio station on the ground wishes to communicate with them, via transmitting an aircraft-specific sequence of audio tones over the aircraft's company radio frequency to an automatic decoder on board the aircraft
Definitions
- A system for alerting a specific aircraft that a radio station on the ground wishes to communicate with them, via transmitting an aircraft-specific sequence of audio tones over the aircraft's company radio frequency to an automatic decoder on board the aircraft
Ancestry of “SELCAL”, step by step
SELCAL traces back through two separate lines of ancestry.
via English calling
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | calling | present participle of call; A strong urge to... |
| 2 | English | -ing | Used to form gerunds, a type of verbal nouns,... |
| 3 | Old English | -ing | Forming nouns from verbs, indicating action,... |
| 4 | Old English | -tūn | homestead, village, town |
| 5 | Old English | tūn | enclosure, yard; place; dwelling |
| 6 | Proto-West Germanic | tūn | fence |
| 7 | Proto-Germanic | tūną | fence; enclosure |
| 8 | Gaulish | dunum | fort; hill, hillfort |
| 9 | Proto-Celtic | dūnom | stronghold, rampart |
| 10 | Proto-Indo-European | dʰewh₂- | smoke; mist, haze |