1) Childbirth 
reclining as on a couch
• (n.) The act or posture of reclining on a couch, as practiced by the ancients at meals.
Childbirth
Ac`cu·ba'tion noun [ Latin accubatio , for accubitio , from accubare to recline; ad + cubare to lie down. See Accumb .] The act or posture of reclining on a couch, as practiced by the ancients at meals.