The Collaborative International Dictionary
Excubation
Excubation \Ex`cu*ba"tion\n. [L. excubatio, fr. excubare to lie
out on guard; ex out on guard; ex out + cubare to lie down.]
A keeping watch. [Obs.]
--Bailey.
[1913 Webster] ||
Wiktionary
excubation
n. (context obsolete English) A keep watch; a vigil.