In Latin Grammar, Robert J. Henle wrote (p. 2),


  1. a. In words of two syllables the accent is on the first.
    vía; béllum

  2. b. In words of more than two syllables, if the second last syllable is long it is accented; otherwise the accent is on the third last syllable.
    vidḗrunt; ágmĭne

Are there any exceptions to these rules? (I’m assuming that Latinized forms of foreign words will be the exception, but I am not certain.)


Henle, Robert J. Latin Grammar. Chicago: Loyola Press, 1958.