from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
ANIMUS FURANDI, crim. law. The intention to steal. In order to constitute
larceny, (q.v.) the thief must take the property animo furandi; but this,
is expressed in the definition of larceny by the word felonious. 3 Inst.
107; Hale, 503; 4. Bl. Com. 229. Vide 2 Russ. on Cr. 96; 2 Tyler's R. 272.
When the taking of property is lawful, although it may afterwards be
converted animo furandi to the taker's use, it is not larceny. 3 Inst. 108;
Bac. Ab. Felony, C; 14 Johns. R. 294; Ry. & Mood. C. C. 160; Id. 137; Prin.
of Pen. Law, c. 22, Sec. 3, p. 279, 281.