The Collaborative International Dictionary of English v.0.48:
Obsequy \Ob"se*quy\, n.; pl. Obsequies. [L. obsequiae, pl.,
funeral rites, fr. obsequi: cf. F. obs[`e]ques. See
Obsequent, and cf. Obsequious.]
1. The last duty or service to a person, rendered after his
death; hence, a rite or ceremony pertaining to burial; --
now used only in the plural. --Spencer.
I will . . . fetch him hence, and solemnly attend,
With silent obsequy and funeral train. --Milton
I will myself
Be the chief mourner at his obsequies. --Dryden.
The funeral obsequies were decently and privately
performed by his family. --J. P.
2. Obsequiousness. [Obs.] --B. Jonson.