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In Latin Grammar, Robert J. Henle wrote (p. 2),
a. In words of two syllables the accent is on the first.
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.
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.