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copious

/ˈkoʊ.pi.əs/

Abundant, plentiful, or rich in quantity

From Latin co- (Together) + Latin ops (Power).

adjective
co-
Latin
AI-inferred
com-
Together or jointly; appears as co- in copia
ops
Proto-Indo-European
Verified
*op-
reconstructed
To work; produce abundantly

from PIE root *op- "to work, produce in abundance." Related: Copiously; copiousness .

Latin
AI-inferred
ops (genitive opis)
Power, wealth, resources, or prosperity
-osus
Latin
Verified
-ōsus
Suffix meaning full of or characterized by

from Latin copiosus "plentiful,"

+1 more source
Combined
copia
Latin copia combined co- “together” with ops “resources,” producing “abundance, plenty, or ample supply.”
Latin
Verified
copiosus
Plentiful, abundant; literally full of resources or plenty

from Latin copiosus "plentiful,"

+1 more source
Middle English
Verified
copious
Borrowed in the mid-14th century with the meaning abundant or plentiful

from Middle English copious

Modern English
copious

Picture a Roman household with a well-stocked granary, overflowing wine jars, and enough money to make tomorrow’s worries seem pleasantly theoretical: that was copia, “abundance” or “plenty.” The word joined co-—“together”—with ops, a Latin word for resources, power, and wealth; ops was also the name of a Roman goddess associated with abundance. Latin then added -ōsus, “full of,” creating copiosus: literally something laden with plenty. English borrowed it as copious in the mid-14th century, and the meaning soon stretched beyond grain and treasure to include copious words, information, and explanations. So when a student writes a copious answer, the ancient image is not merely “long”: it is a page whose resources are spilling over the edges.

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