undecuple

single solo double twofold triple threefold quadruple fourfold quintuple pentuple fivefold loner singleton monad pair couple twosome duo dyad trio threesome triad troika foursome quartet tetrad fivesome quintet pentad only one singlet twin one of two doublet triplet one of three quadruplet one of four quintuplet pentuplet one of five sextuple hextuple sixfold septuple heptuple sevenfold octuple eightfold ninefold nonuple tenfold decuple sixsome sextet hexad sevensome septet heptad eightsome octet octad ninesome nonet ennead tensome decet decad sextuplet hextuplet one of six one of seven septuplet heptuplet octuplet one of eight one of nine nonuplet one of ten decuplet elevenfold undecuple hendecuple twelvefold duodecuple thirteenfold tredecuple a hundredfold centuple multiple elevensome twelvesome thirteensome hundredsome one of eleven undecuplet hendecuplet one of twelve duodecuplet one of thirteen tredecuplet one of a hundred centuplet one of many multiplet