I have not tried this (and am not sure I really want to risk it) but... the Adobe Hyphenation dictionary contains the following:
Code:
LEFTHYPHENMIN 2
RIGHTHYPHENMIN 3
This looks very similar to the values used by TeX and LaTex to control hyphenation; their descriptions are
Quote:
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TeX won’t hyphenate less than \lefthyphenmin characters after the start of a word, nor less than \righthyphenmin before the end of a word; thus it won’t hyphenate a word shorter than the sum of the two minima, at all. For example, since the minima are 2 and 3 for English, TeX won’t hyphenate a word shorter than 5 letters long, if it believes the word to be English
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So it is possible that one could change \usr\local\Kobo\hyphenDicts\hyph_en.dic to have a less aggressive hyphenation setup.
Elsewhere I have seen mention that a sum of the two values to larger than 62 will disable hyphenation totally. (Again this was within TeX / LaTeX).