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operis

Operis is a Latin term that functions as the genitive singular of opus, meaning “of the work” or “of the labor.” It is used to express possession, relation, or attribution in classical Latin sentences.

Etymology and grammar: Opus is a neuter noun of the third declension. Its genitive singular is operis;

Usage: Operis appears primarily in Latin texts—literary, philosophical, legal, or scholarly—where precise expression of possession or

Modern usage: In contemporary contexts, operis may appear as a company name, product line, or project title.

See also: opus, opera, genitive case, Latin grammar.

the
nominative
is
opus
and
the
plural
forms
are
opera
(nominative)
and
operum
(genitive).
Operis
occurs
in
phrases
such
as
pars
operis
(part
of
the
work)
and
finis
operis
(the
end
of
the
work).
In
compound
expressions,
it
can
attach
to
adjectives
and
nouns
to
indicate
the
scope
or
aim
of
a
work,
e.g.,
ratio
operis
(the
plan
of
the
work)
or
propositum
operis
(the
purpose
of
the
work).
relation
is
required.
It
is
not
a
standalone
modern
English
word;
when
encountered
outside
Latin
contexts,
it
is
usually
a
proper
noun
or
brand
name.
Such
uses
are
proper
nouns
and
derive
from
the
Latin
word;
they
do
not
reflect
a
separate
grammatical
meaning
in
Latin
itself.