Where does “Oxfordin sanakirja” come from?

Oxfordin sanakirja (Finnish) comes from Finnish Oxford, from English Oxford, from Middle English Oxenford, from Old English Oxnaford, from Old English ford, from Proto-West Germanic furdu, from Proto-Germanic furduz, from Proto-Indo-European pértus — passed , crossed.

Ancestry of “Oxfordin sanakirja”, step by step

Oxfordin sanakirja traces back through two separate lines of ancestry.

via Finnish Oxford

StepLanguageWordMeaning
1FinnishOxfordOxford any of the various localities or the Oxford University
2EnglishOxfordA variety of shoe, typically made of heavy...
3Middle EnglishOxenford
4Old EnglishOxnafordOxford
5Old Englishfordford
6Proto-West Germanicfurduford
7Proto-Germanicfurduzford
8Proto-Indo-Europeanpértuscrossing
9Proto-Indo-Europeanper-before, in front; first; to go through
10Proto-Indo-Europeanpr̥tóspassed , crossed

via Finnish sanakirja

StepLanguageWordMeaning
1Finnishsanakirjadictionary
2Swedishordboka dictionary
3Swedishordword; A distinct unit of language with a...
4Old Swedishorþword
5Old Norseorðword
6Proto-Germanicwurdąword
7Proto-Indo-Europeanwerdʰo-word
8Proto-Indo-Europeanwerh₁-to speak, say
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European pértus