cervical
From LSJ
cervīcal: (cervīcāle, Cassiod. Orth. p. 2302 P.), ālis, n. cervix,
I a pillow or bolster, = pulvinus; sing., Mart. 14, 146; Juv. 6, 353; Petr. 56, 8; plur., Plin. Ep. 6, 16, 16; Petr. 32, 1; 78, 5; Suet. Ner. 6; Plin. 20, 20, 82, § 217; 28, 4, 12, § 47.