gigabit

The story

1. Ancient GreekΓίγας (Gígas)
2. Ancient Greekγίγας (gígas)
3. Englishgiga-
4. Proto-Indo-European*dwóh₁
5. Proto-Indo-European*trísinflu.
6. Proto-Indo-European*dwís
7. Proto-Italic*dwis
8. Proto-Italic*dwiznos
9. Latinbīnus
10. Late Latinbīnāriu
11. Middle Englishbinarie
12. Englishbinary
13. Proto-Indo-European*deyḱ-der.?
14. Latindigitus
15. Middle Englishdigit
16. Englishdigit
17. Englishbinary digitabbr.
18. Englishbitinflu.
19. Englishbit
20. English todaygigabit

From giga- + bit.