Chrisom

Anciently, a chrisom was the face-cloth, or piece of linen laid over a child's head when he was baptised or christened. The term has come to refer to a child who died within a month after its baptism—so called for the chrisom cloth that was used as a shroud for it.

References

•  This article incorporates text from a publication now in the public domain: Chambers, Ephraim, ed. (1728). "^{article name needed}". Cyclopaedia, or an Universal Dictionary of Arts and Sciences (first ed.). James and John Knapton, et al. 

• Webster's Revised Unabridged Dictionary (1913)