Genethliac
Genethliac , adjective
[Latin genethliacus, Greek {not transcribed}, from {not transcribed} belonging to one's birth, gene`qlh birth, from gi`gnesqai to be born.]
Pertaining to nativities; calculated by astrologers; showing position of stars at one's birth. — Howell
Genethliac , noun
1.
A birthday poem.
2.
One skilled in genethliacs.