Sol-fa \Sol`-fa"\, v. i. [imp. & p. p. {Sol-faed};p. pr. & vb.
n. {Sol-faing}.] [It. solfa the gamut, from the syllables fa,
sol.]
To sing the notes of the gamut, ascending or descending; as,
do or ut, re, mi, fa, sol, la, si, do, or the same in reverse
order.
[1913 Webster]
Yet can I neither solfe ne sing. --Piers
Plowman.
[1913 Webster]