a primitive root perhaps originally to intensify, ie treble; TWOT - 2403
AV - three years old 3, third time 2, threefold 1, three 1, three parts 1, three days 1; 9
1) to do a third time, do three times, divide in three parts
1a) (Piel) to do a third time, divide into three parts
1b) (Pual) to be three years of age, be threefold