quadruplex

English

Etymology

From Latin quadruplex (“fourfold, quadruple”), from quattuor (“four”) + plico (“fold”). By surface analysis, quadru- +‎ -plex.

Adjective

quadruplex (not comparable)

1. Having four components.
2. Of or relating to a system in telegraphy by which four messages (two in each direction) can be sent on one wire simultaneously.
3. Of or relating to an early videotape format with four magnetic record/reproduce heads mounted on a headwheel spinning transversely across the tape.

Related terms

• quadruplicity

Translations

having four components

• Greek: τετραπλός (el) m (tetraplós)

Noun

quadruplex (countable and uncountable, plural quadruplexes)

1. (countable) A quadruplex system.
   • 1905 August 12, Electrical World and Engineer, volume XLVI, number 7, New York, N.Y., page 256, column 1:

     The Western Union office is equipped with four quadruplexes, three duplexes and eleven single loops, besides special private loops in the Japanese and Russian suites, where direct communication will be maintained with the Atlantic cables at Heart’s Content, Newfoundland via Canso, and also with the Western Union offices in New York, whence the Japanese diplomatic matter will be sent via land lines to San Francisco over a direct circuit.

2. (uncountable) Clipping of quadruplex videotape, an early type of videotape with four magnetic record/reproduce heads mounted on a headwheel spinning transversely across the tape.

Derived terms

• G-quadruplex

Translations

a quadruplex system

• Greek: τετραπλός (el) m (tetraplós)

Verb

quadruplex (third-person singular simple present quadruplexes, present participle quadruplexing, simple past and past participle quadruplexed)

1. (transitive) To make quadruplex.

Latin

Latin numbers ^(edit)

←  3	IV 4	5  → [a], [b], [c], [d]
Cardinal: quattuor     Ordinal: quārtus     Adverbial: quater     Proportional: quadruplus     Multiplier: quadruplex, quadriplex     Distributive: quaternus, quadrīnus     Collective: quaterniō     Fractional: quadrāns, teruncius

Etymology

Etymology tree

Proto-Indo-European *kʷetwṓr

Proto-Italic *kʷettwōr

Latin quattuor

Proto-Indo-European *pel-der.?

Latin -plex

Latin quadruplex

From quattuor (“four”) + -plex (“-fold”).

Pronunciation

• (Classical Latin) IPA^(key): [ˈkʷa.drʊ.pɫɛks]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈkʷaː.dru.pleks]

Adjective

quadruplex (genitive quadruplicis, adverb quadrupliciter); third-declension one-termination adjective

1. fourfold, quadruple

Declension

Third-declension one-termination adjective.

	singular			plural
	masc./fem.	neuter		masc./fem.	neuter
nominative	quadruplex			quadruplicēs	quadruplicia
genitive	quadruplicis			quadruplicium
dative	quadruplicī			quadruplicibus
accusative	quadruplicem	quadruplex		quadruplicīs quadruplicēs	quadruplicia
ablative	quadruplicī quadruplice			quadruplicibus
vocative	quadruplex			quadruplicēs	quadruplicia

Noun

quadruplex n (genitive quadruplicis); third declension

1. a fourfold amount

Declension

Third-declension noun (neuter, imparisyllabic non-i-stem).

	singular	plural
nominative	quadruplex	quadruplica
genitive	quadruplicis	quadruplicum
dative	quadruplicī	quadruplicibus
accusative	quadruplex	quadruplica
ablative	quadruplice	quadruplicibus
vocative	quadruplex	quadruplica

Related terms

• quadruplicātiō
• quadruplicātō
• quadruplicō
• quadruplō
• quadruplus

Descendants

• → English: quadruplex
• → Italian: quadruplice
• → Sicilian: quatrùprici

References

• “quadruplex”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “quadruplex”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• “quadruplex”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.