late 14c., from O.Fr. domination, from L. dominationem (nom. dominatio), from dominari "to rule, have dominion over," from dominus "lord, master," lit. "master of the house," from domus "home" (see domestic) + -nus, suffix denoting ownership or relation. First record of dominance is 1819; dominatrix is attested since 1560s, though not in quite the usual modern sense ("Rome ... dominatrix of nations" [1561]).