Google Books Ngram Viewer

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

1800 - 1840 1841 - 1969 1970 - 1977 1978 - 2004 2005 - 2008 reflektion German
1800 - 1812 1813 - 1822 1823 - 1885 1886 - 1993 1994 - 2008 reflexion German

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