Where does “Bờ Biển Ngà” come from?

Bờ Biển Ngà (Vietnamese) comes from Vietnamese bỏ, from English board, from English boardrider, from English rider, from Middle English ridere, from Middle English ryder, from Old English rīdere, from Old English rīdan — to fit, to fix, to put together.

Ancestry of “Bờ Biển Ngà”, step by step

Bờ Biển Ngà traces back through 3 separate lines of ancestry.

via Vietnamese bỏ

StepLanguageWordMeaning
1Vietnamesebỏto put, to place; to leave, to abandon; to quit
2EnglishboardA relatively long, wide and thin piece of any...
3Englishboardridersurfer
4EnglishriderOne who rides, often on a horse or a motorcycle;...
5Middle EnglishridereAlternative form of ryder
6Middle EnglishryderA rider or equestrian; one who rides a horse; A...
7Old Englishrīdererider, knight
8Old Englishrīdanto ride
9Proto-West Germanicrīdanto ride
10Proto-Germanicrīdanąto ride
11Proto-Indo-Europeanrēydʰ-
12Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via Vietnamese ngã

StepLanguageWordMeaning
1Vietnamesengãto fall; Short for thanh ngã; an intersection
2Chinese
3ManchuᠣᡵᠣᠰRussian
4Classical Mongolianᠣᠷᠤᠰ᠋
5Middle Mongolian斡羅思
6Old East SlavicРусьRus; Ruthenia
7FinnishruotsiSwedish
8Proto-Finnic*roocciSwede originally anyone from Roslagen
9Old Swedishroþs-related to rowing
10Old Norseróðrrowing
11Proto-Germanicrōþrąoar; rudder
12Proto-Indo-Europeanh₁reh₁-to row; to separate; loose, sparse, rare

via French Côte d'Ivoire

StepLanguageWordMeaning
1FrenchCôte d'Ivoire
Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European rēydʰ-Every word from Proto-Germanic rīdaną