Where does “New Guinean rat” come from?

New Guinean rat (English) comes from English New Guinean, from English ān, from Middle English ān, from Old English ān, from Proto-West Germanic ain, from Proto-Germanic ainaz, from Proto-Indo-European óynos — one; single.

New Guinean rat (English): A rat of the species Rattus novaeguineae

Definitions

  1. A rat of the species Rattus novaeguineae

Ancestry of “New Guinean rat”, step by step

New Guinean rat traces back through two separate lines of ancestry.

via English New Guinean

StepLanguageWordMeaning
1EnglishNew GuineanOf or pertaining to New Guinea; A person from New...
2Englishān
3Middle Englishāna, an indefinite article
4Old Englishānlonely; entirely alone, solitary, single; one
5Proto-West Germanicainone
6Proto-Germanicainazone; some
7Proto-Indo-Europeanóynosone; single

via English rat

StepLanguageWordMeaning
1EnglishratA medium-sized rodent belonging to the genus...
2Middle EnglishraatAlternative form of ratte
3Old EnglishrætAlternative form of rætt
4Old Englishrættrat
5Proto-Germanicrattazrat
6Proto-Indo-EuropeanHreh₃d-to scrape
Every word from Proto-Indo-European óynosEvery word from Proto-Germanic ainazEvery word from Proto-West Germanic ain