Lewis & Short

clāvo, no perf., ātum, 1, v. a. [clavus] (rare; not ante-Aug.; mostly in part. perf.).

  1. I. To furnish or fasten with nails, to nail, Paul. Nol. 21, 103: clavata concha, i. e. furnished with points or prickles, Plin. 9, 36, 61, § 130.
  2. II. To furnish with a purple stripe (cf. clavus, II. D.): mantilia cocco clavata, Lampr. Alex. Sev. 37: clavata auro tunica, Vop. Bonos. 15; cf. Paul. ex Fest. p. 56, 9 Müll.