Infinity

Part of speech: noun

Pronunciation: /ɪnˈfɪnɪti/

Definitions

  1. The state of being limitless or endless in space, time, or quantity; boundlessness beyond measure
  2. A boundless extent or quantity that transcends all finite limits and measures
  3. The quality of having no end, boundary, or maximum in duration, magnitude, or scope

Etymology: The word "infinity" entered English in the 14th century, borrowed from Old French "infinité", which in turn derived from the Latin "infinitas". The Latin term was built from "infinitus", meaning "boundless" or "unlimited", formed by combining the prefix "in-" (meaning "not") with "finitus" (meaning "bounded" or "limited"). The root "finitus" itself comes from "finis", the Latin word for "end" or "boundary", which gave rise to the modern English word "finite". Thus the etymological core of "infinity" is literally "the quality of having no end or boundary". In medieval and early modern usage, "infinity" was primarily a theological and philosophical term, referring to the boundless nature of God or the divine. This abstract sense reflected the word's origins in Latin philosophical and religious discourse. During the 16th and 17th centuries, as mathematics and astronomy developed as formal disciplines, "infinity" began to acquire more technical meanings. Mathematicians and astronomers adopted the word to describe quantities or spaces without limit or bound—concepts essential to understanding the cosmos and numerical systems. By the 18th century, "infinity" had become firmly established in mathematical vocabulary, used to denote a quantity greater than any assignable number or a space extending without limit. The symbol ∞, introduced by mathematician John Wallis in 1655, became the standard notation for this concept. The word's meaning had thus evolved from a purely theological abstraction about God's nature to a precise mathematical and scientific term. Today "infinity" is used across multiple registers: in mathematics and physics as a formal concept, in philosophy and theology as it was historically used, and in everyday speech to mean "an extremely large or seemingly endless quantity or distance".

Synonyms: eternity, boundlessness

Antonyms: finite, limited