[dimydicion], [7/23]; the operation of dividing a number by two. Halving.
[duccioun], multiplication, [43/9].
[duplacion], [7/23], [14/15]; the operation of multiplying a number by two. Doubling.
[i-mediet] = halved, [19/23].
[intercise] = broken, [46/2]; intercise Progression is the name given to either of the Progressions 1, 3, 5, 7, etc.; 2, 4, 6, 8, etc., in which the common difference is 2.
[lede into], multiply by, [47/18].
[lyneal nombre], [46/14]; a number such as that which expresses the measure of the length of a line, and therefore is not necessarily the product of two or more numbers (vide Superficial, Solid). This appears to be the meaning of the phrase as used in The Art of Nombryng. It is possible that the numbers so designated are the prime numbers, that is, numbers not divisible by any other number except themselves and unity, but it is not clear that this limitation is intended.
[mediacioun], [16/36], [38/16]; dividing by two (see also dimydicion).
[medlede nombre], [34/1]; a number formed of a multiple of ten and a digit (vide componede, composyt).
[medye], [17/8], to halve; mediete, halved, [17/30]; ymedit, [20/9].