COLUMN n.
Anything resembling, in form or position, a column an architecture; an upright body or mass; a shaft or obelisk; as, a column of air, of water, of mercury, etc. ; the Column Vendôme; the spinal column.
COM- n.
A prefix from the Latin preposition cum, signifying with, together, in conjunction, very, etc. It is used in the form com- before b, m, p, and sometimes f, and by assimilation becomes col- before l, cor- before r, and con- before any consonant except b, h, l, m, p, r, and w. Before a vowel com- becomes co-; also before…