vigesimal

[ vahy-jes-uh-muh l ]

/ vaɪˈdʒɛs ə məl /

of, relating to, or based on twenty.

twentieth.

proceeding by twenties.

Origin of vigesimal

1650–60; < Latin vīgēsim(us), variant (with g of vīgintī twenty) of vīcēsimus, vīcēnsimus twentieth + -al¹

viewy, viff, vig, viga, vigentennial, vigesimal, vigesimo, vigesimo-quarto, vigia, vigil, vigil light

This leads the quinary into the vigesimal scale, and produces the combination so often found in certain parts of the world.

The Number Concept |Levi Leonard Conant
Considering the fact that the use of vigesimal counting was universal among Celtic races, this explanation is quite gratuitous.

The Number Concept |Levi Leonard Conant
Any number system which passes the limit 10 is reasonably sure to have either a quinary, a decimal, or a vigesimal structure.

The Number Concept |Levi Leonard Conant
In the following scale the vigesimal structure is still more obscure.

The Number Concept |Levi Leonard Conant

It counted by units and scores; in other words, it was a vigesimal system.

The Maya Chronicles |Various

vigesimal

/ (vaɪˈdʒɛsɪməl) /

relating to or based on the number 20

taking place or proceeding in intervals of 20

twentieth

C17: from Latin vīgēsimus, variant (influenced by vīgintī twenty) of vīcēsimus twentieth