The story
- Proto-Italic*aikʷos?
- Old Latinaiquos
- Latinaequus
- Latinaequō
- Medieval Latinaequātōrem
- Spanishecuador
- SpanishEcuador
- English todayEcuador
Borrowed from Spanish Ecuador, itself from ecuador (“equator”).
Etymology from Wiktionary, CC BY-SA 4.0.