natal
adj.
late 14c., "of or pertaining to birthdays," from Latin natalis "pertaining to birth or origin," from natus, past participle of nasci "to be born" (Old Latin gnasci; see genus).
〔蒋〕[nat诞生，-al…的] 诞生的，出生的，诞生时的
〔李〕[nat=to be born出生；-al a.=of……的→“of being born出生的”→] a. of or connected with one's birth出生的；诞生时的