Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Santŏni, ōrum (collat. form Santŏ-nes, Plin. 4, 19, 33, § 108 (Jahn, Santoni); cf. in sing., Santo, acc. to Prob. II., p. 1450 P.), m., a people of Aquitania, about the mouth of the Garumna, opposite to Burdigala, now Saintes, in the Départ. Charente Inférieure: Santones, Caes. B. G. 1, 11 fin.: Santonis, id. ib. 3, 11 fin.; 7, 75, 3; Mel. 3, 2, 7; Tac. A. 6, 7; Aus. Ep. 11 fin.
Gen.
Santonum, Caes. B. G. 1, 10; Plin. 9, 5, 4, § 10: Santonorum, Aus. Ep. 15, 11.
In sing.: Santŏnus, Luc. 1, 422 Corte; Aus. Ep. 24, 79.
Hence, Santŏnĭcus, a, um, adj., of or belonging to the Santoni, Santonian: Oceanus, Tib. 1, 7, 10 (Müll. Sanctonicus); cf. salum, Aus. Ep. 9, 31: aestus, id. Idyll. 10, 463: campi, id. Ep. 14, 2: tellus, id. Parent 21, 7: urbs, i. e. their capital, Mediolanum, id. Ep. 8, 3: bardocucullus, Mart. 14, 128: cucullus, Juv. 8, 145: absinthium, Plin. 27, 7, 28, § 45; also called virga, Mart. 9, 95, 1; and, herba, Scrib. Comp. 141.

Santŏnus, i, v. Santoni.