hebdomadhebdomaden.
/ˈhɛbdəmad//ˈhɛbdəmeɪd/ΘΚΠ
the world > relative properties > number > mathematical number or quantity > numerical arrangement > [noun] > set > elements in or parts of > specific number of
hebdomad1545
quaternion1549
tetractys1603
quaternary number1605
tetrad1653
heptad1660
pentad1660
quaternary of numbers1809
tripair1878
trey1887
1545 G. Joye Expos. Daniel (x.) f. 170 I daniel was so heuey by thre hebdomads of dayes.
1552 R. Huloet Abcedarium Anglico Latinum Ebdomade, Vide in number of 7.
1603 C. Heydon Def. Iudiciall Astrol. xx. 411 9. Hebdomades of yeares.
1678 R. Cudworth True Intellect. Syst. Universe i. iv. 376 The Tetrad is an Arithmetical Mediety, betwixt the Monad and the Hebdomad.
1837 R. Southey Doctor IV. 57 Like the hebdomad, which profound philosophers have pronounced to be..a motherless as well as a virgin number.
2. The space of seven days, a week: used particularly in reference to the ‘70 weeks’ of Daniel's prophecy.
ΘΚΠ
the world > time > period > a week > [noun]
weekeOE
sennightOE
seven daysOE
weekOE
seven days and seven nightsOE
(an) eight daysc1160
a week of daysa1382
week1398
sennight dayc1425
septimane1450
seventh night1567
sennight space1599
hebdomad1600
septuary1646
heptad1876
1600 W. Watson Quodlibets Relig. & State (1602) 201 In this Babylonian transmigration Daniels Hebdomades beginning to take their place.
1662 J. Glanvill Lux Orientalis ii. 19 Those of creation being concluded within the first Hebdomade.
1890 E. Johnson Rise Christendom 413 The Passion was consummated in the time of the seventieth Hebdomad.
3. In some Gnostic systems, a group of seven superhuman beings; also a title of the Demiurge.
ΘΚΠ
the world > the supernatural > deity > Christian God > [noun] > in Gnosticism > group of seven
hebdomad1837
1837 W. Whewell Hist. Inductive Sci. I. 292 The intellectual gods..evolve the intelligible, and at the same time intellectual triads, into intellectual hebdomads.
1853 W. E. Tayler Hippolytus ii. iv. 97 Seven powers are supposed to have originated from the First Cause of all, which hebdomad formed, with their author, the first ogdoad..or root of all existence.
1881 C. Wordsworth Ch. Hist. I. 195 In the next lower sphere [below the Ogdoad, in the system of Basilides] called the Hebdomad, or sphere of seven, is the second Archon, or Ruler.
This entry has not yet been fully updated (first published 1898; most recently modified version published online December 2020).
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