arch (v.) Copy link Outline 1. arcuo, 12. concămĕro, cămĕro (rare)3. confornĭco, 1 (rare)4. Perhaps better than the above in ordinary lang., fornicibus instruere, suffulcire • arch (v.): 1. arcuo, 1: i. e. to construct in the form of an a. (rare): the (millipede) which does not a. itself in creeping, illa quae non arcuatur, Plin. 29, 6, 39 (where it is opposed to arcuatim repere, a little before): an a.'d chariot, arcuatus currus, Liv.: a.'d work (of an aqueduct), arcuatum opus, Plin. 2. concămĕro, cămĕro (rare): v. to vault. 3. confornĭco, 1 (rare): to a. cells, buildings, cellas, structuras c., Vitr. 4. Perhaps better than the above in ordinary lang., fornicibus instruere, suffulcire: v. to curve, vault.