Where does “Plutarchan” come from?

Plutarchan (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.

Plutarchan (English): Of or relating to Plutarch, an Ancient Greek...

Definitions

Of or relating to Plutarch, an Ancient Greek...

Ancestry of “Plutarchan”, step by step

Plutarchan 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 plutarch

Step	Language	Word	Meaning
1	English	plutarch	The classical historian and essayist Lucius Mestrius Plutarchus (46-120). Often used as a byword for a biographer, to suggest that the writer is especially skilled or has other attributes associated with Plutarch
2	Latin	Plutarchus	Plutarch of Chaeronea (Lūcius Mestrius Plūtarchus, ca. 46 – 120), a celebrated Graeco-Roman philosopher, historian, biographer, essayist, and priest at the Temple of Apollo in Delphi; best known for writing his Lives of the Noble Greeks and Romans, a biographical series commonly referred to as Pluta
3	Ancient Greek	Πλούταρχος	Plutarch of Chaeronea, full name Λούκιος Μέστριος Πλούταρχος, romanized Lūcius Mestrius Plūtarchus, lived ca. 46–120. A celebrated Graeco-Roman philosopher, historian, biographer, essayist, and priest at the Temple of Apollo in Delphi; best known for writing his Lives of the Noble Greeks and Romans,
4	Ancient Greek	Πλοῦτος	wealth
5	Ancient Greek	πλέω	sail; float
6	Proto-Indo-European	plew-	to fly, flow, run

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