Base \Base\ (b[=a]s), v. t. [imp. & p. p. {Based} (b[=a]sd); p.
pr. & vb. n. {Basing}.] [From {Base}, n.]
To put on a base or basis; to lay the foundation of; to
found, as an argument or conclusion; -- used with on or upon.
--Bacon.
[1913 Webster]