Where does “Galapagoan” come from?

Galapagoan (English) comes 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.

Galapagoan (English): Of or relating to the Galapagos

Definitions

Of or relating to the Galapagos

Ancestry of “Galapagoan”, step by step

Galapagoan traces back through two separate lines of ancestry.

via English ān

Step	Language	Word	Meaning
1	English	ān	—
2	Middle English	ān	a, an indefinite article
3	Old English	ān	lonely; entirely alone, solitary, single; one
4	Proto-West Germanic	ain	one
5	Proto-Germanic	ainaz	one; some
6	Proto-Indo-European	óynos	one; single

via English Galapagos

Step	Language	Word	Meaning
1	English	Galapagos	comprising the islands
2	Spanish	galápago	Any of several species of turtle; giant tortoise
3	Undetermined	calappacu	—

Every word from Proto-Indo-European óynos →Every word from Proto-Germanic ainaz →Every word from Proto-West Germanic ain →