Back to explorer

entry

infinite

/ˈɪnfɪnɪt/

Without limit, end, or measurable boundary

From Latin in- (not) + Latin fīnis (end).

adjective
noun
in-
Latin
AI-inferred
in-
Prefix meaning “not” or “opposite of”; it negates the following idea.
Latin
AI-inferred
in-
In infinitus, it marks something as not bounded or not ended.
fīnis
Latin
AI-inferred
fīnis
“End, boundary, limit”; the source of the idea of setting a terminal point.
Latin
Verified
fīnītus
“Limited, bounded, finished,” the perfect participle of fīniō, “to limit or finish.”

from Latin infinitus "unbounded, unlimited, countless, numberless,"

Combined
īnfīnītus
Latin in- “not” + fīnītus “bounded, finished”: literally “not bounded” or “without an end.”
Latin
Verified
īnfīnītus
“Unbounded, unlimited, countless, numberless.”

from Old French infinit "endless, boundless" and directly

+1 more source
Old French
Verified
infinit
“Endless, boundless”; borrowed from Latin.

from Old French infinit "endless, boundless" and directly

+1 more source
Middle English
Verified
infinite
Borrowed from Old French; first attested in English in the late 14th century.

from Old French infinit "endless, boundless" and directly

+1 more source
Modern English
Verified
infinite
“Without limit or end,” also used for immeasurably large quantities.

from Old French infinit "endless, boundless" and directly

+1 more source
Modern English
infinite

Picture a Roman clerk drawing a line on a wax tablet: that line was a finis, a boundary or end. Add in-, meaning “not,” and Latin īnfīnītus becomes “not bounded”—a wonderfully literal refusal to stop. The word reached English through Old French infinit and appeared by the late 14th century, just as medieval thinkers were arguing about whether the universe itself could have an edge. Its family is full of familiar surprises: finite is the bounded cousin, definitive is something that sets a boundary, and finish is what happens when you reach one. When you say infinite, you are imagining a line whose Roman boundary marker has vanished—and there is simply no last step to take.

§