Lewis & Short

commĕmŏrābĭlis (conm-), e, adj. [commemoro], worth mentioning, memorable (rare): clara et conmemorabilis pugna, * Plaut. Ps. 1, 5, 111: multa commemorabilia proferre, Cic. N. D. 2, 52, 131: pietas, id. Marcell. 4, 10.