What is Aliunde?

Legal Definition
From another place; evidence given aliunde, as, when a will contains an ambiguity, in some cases, in order to ascertain the meaning of the testator, evidence aliunde will be received.
-- Bouviers Law Dictionary
Legal Definition
Lat. From another source; from elsewhere; from outside. Evidence aliunde (i. e., from without the will) may be received to explain an ambiguity in a will. 1 Greenl. Ev. ยง 291.
-- Black's Law Dictionary
Legal Definition
From another place.
-- Ballentine's Law Dictionary