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asarotum

[as-uh-roh-tuh m]
noun, plural as·a·ro·ta [as-uh-roh-tuh] /ˌæs əˈroʊ tə/.
  1. (in ancient Roman architecture) a painted pavement.

Origin of asarotum

Latinization of neuter singular of Greek asárōtos literally, unswept (once in Pliny, designating a floor paved in mosaic resembling table scraps), equivalent to a- a-6 + sarō-, verbid stem of saroûn to sweep clean + -tos verbal adjective suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018