These words, notwithstanding instances 1789 and 1872, are usually accented on the first syllable.

1

1789.  

        The maid, refresh’d with cakes and wine,
Forbids her tender swain to pine;
But lest mama should chide her stay,
She enters soon the gliding sleigh.
American Museum, v. 204 (Feb.).    

2

1808.  

        His little son, a lad of merit
Who oft had seen him steep’d in spirit,
In great surprise, cri’d, Mamma, see
A miracle, a prodigy;
Papa’s come home, with decent spunk,
To save his hay, and is not drunk.
The Balance, March 15, p. 44.    

3

1872.  

        If the men were so wicked, I ’ll ask my papa
How he dared to propose to my darling mamma.
Holmes, ‘The Poet at the Breakfast-Table,’ chap. iii.    

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