hologram

/หˆhษ’l.ษ™.ษกษนรฆm/ยทnounยท1949ยทEstablished

Origin

Hologram means whole record โ€” and shares a root with safe and salvation.โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€Œ

Definition

A three-dimensional image formed by the interference of light beams.โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€Œ

Did you know?

Dennis Gabor coined 'hologram' from Greek 'holos' (whole) + 'gramma' (record) because it captures the complete light field. The 'holo-' root connects it to 'holistic' and, unexpectedly, to 'safe' and 'salvation' โ€” Greek 'holos' and Latin 'salvus' both descend from the same PIE root meaning whole and intact.

Etymology

Greek (modern coinage)1949well-attested

Coined in 1949 by Hungarian-British physicist Dennis Gabor from Greek 'holos' (whole, entire, complete) + 'gramma' (something written or drawn, a letter, a record). Gabor chose the name because a hologram records the 'whole' information of a light field โ€” both amplitude and phase โ€” unlike a photograph, which captures only intensity. He won the 1971 Nobel Prize in Physics for the invention. Greek 'holos' comes from Proto-Indo-European *solhโ‚‚-wo- (whole, intact), which also gave Latin 'salvus' (safe, uninjured) โ€” the source of 'save,' 'safe,' 'salvation,' and 'salute.' Greek 'gramma' derives from 'graphein' (to write), from PIE *gerbh- (to scratch, to carve). The '-gram' suffix appears in 'telegram,' 'diagram,' 'program,' 'anagram,' and 'Instagram.' Gabor originally called his technique 'holography' โ€” 'whole-writing.' Key roots: *solhโ‚‚-wo- (Proto-Indo-European: "whole, intact"), *gerbh- (Proto-Indo-European: "to scratch, to carve").

Ancient Roots

This Word in Other Languages

hologramme(French)Hologramm(German)ologramma(Italian)holograma(Spanish)

Hologram traces back to Proto-Indo-European *solhโ‚‚-wo-, meaning "whole, intact", with related forms in Proto-Indo-European *gerbh- ("to scratch, to carve"). Across languages it shares form or sense with French hologramme, German Hologramm, Italian ologramma and Spanish holograma, evidence of a shared etymological family.

Connections

See also

hologram on Merriam-Webstermerriam-webster.com
hologram on Wiktionaryen.wiktionary.org
Proto-Indo-European rootsproto-indo-european.org

Background

Origins

The word "hologram" was coined in 1949 by Hungarian-British physicist Dennis Gabor, who combined Greek "holos" (whole, entire) with "gramma" (something written or recorded).โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€Œโ€‹โ€Œโ€‹โ€โ€‹โ€โ€‹โ€Œ Gabor chose this name because his invention captured the whole information of a light field โ€” both amplitude and phase โ€” unlike conventional photography, which records only light intensity. He received the 1971 Nobel Prize in Physics for this work.

Greek "holos" traces to Proto-Indo-European *solhโ‚‚-wo- (whole, intact), a root with an unexpected English family. Latin "salvus" (safe, uninjured) descends from the same source, giving us "save," "safe," "salvation," "salute," and "salvo." The connection between "whole" and "safe" makes intuitive sense โ€” something intact is something unharmed.

Proto-Indo-European Roots

The "-gram" element, from Greek "gramma" (something written), derives from "graphein" (to write), from PIE *gerbh- (to scratch, to carve). This suffix appears across English in "telegram," "diagram," "program," and "anagram."

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