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The word '''infinity''' comes from the [[Latin]] ''infinitas'' or "unboundedness." It refers to several distinct concepts (usually linked to the idea of "without end") which arise in [[philosophy]], [[mathematics]], and [[theology]].

The word '''infinity''' comes from the [[Latin]] ''infinitas'' or "unboundedness." It refers to several distinct concepts (usually linked to the idea of "without end") which arise in [[philosophy]], [[mathematics]], and [[theology]].

=== Infinity symbol ===

=== Infinity symbol ===

The precise origin of the infinity symbol '''∞''' is unclear. One possibility is suggested by the name it is sometimes called — the [[lemniscate]], from the Latin ''lemniscus'', meaning "ribbon." One can imagine walking forever along a simple loop formed from a ribbon.

The precise origin of the infinity symbol '''∞''' is unclear. One possibility is suggested by the name it is sometimes called — the [[lemniscate]], from the Latin ''lemniscus'', meaning "ribbon." One can imagine walking forever along a simple loop formed from a ribbon.