DECUMBITURE
Etymology
Noun
decumbiture (plural decumbitures)
(obsolete) The fact of lying down, specifically of a person due to illness.
(astrology, now historical) The time one takes to one's bed during an illness, as used for astrological prognostications; or a chart drawn up to express this.
Source: Wiktionary
De*cum"bi*ture, n.
1. Confinement to a sick bed, or time of taking to one's bed from
sickness. Boyle.
2. (Astrol.)
Definition: Aspect of the heavens at the time of taking to one's sick bed,
by which the prognostics of recovery or death were made.
Source: Webster’s Unabridged Dictionary 1913 Edition