The story
- Proto-Indo-European*solh₂-
- Proto-Indo-European*solh₂-i-dʰ-o-s
- Proto-Italic*soliðos
- Latin(nummus) solidus
- Latinsoldus
- Italiansoldo
- Italiansoldare
- Italiansoldato
- English todaysoldato
Borrowed from Italian soldato (“soldier”).
Etymology from Wiktionary, CC BY-SA 4.0.