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circum-lŭvĭo, ōnis, f.; and cir-cumlŭvĭum, ii, n. [luo], the accumulation of land by alluvion around a piece of land, alluvial land: jura circumluvionum, the right of using such land, Cic. de Or 1, 38, 173.
Form circumluvium, Paul. ex Fest. p. 64, 14 Müll., and Isid. Orig. 14, 8, 12.