Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1840 - 1858 1859 1860 - 1883 1884 - 1948 1949 - 1991 sweetart English
1840 - 1875 1876 - 1880 1881 1882 - 1962 1963 - 2000 sweetard English

Run your own experiment! Raw data is available for download here.
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