Did you by chance change the Mac OS X system preferences 'Order for sorted lists' from 'Standard' to 'Turkish' (or whatever the language is that Inkscape uses now) when that happened?
You can find it in 'System Preferences > International > Language: Order for sorted lists'.
Similar earlier reports: Bug #488120 “UI language changing gradually to Greek” Bug #349825 “Download Current Mac Version is French Only!”
Did you by chance change the Mac OS X system preferences 'Order for sorted lists' from 'Standard' to 'Turkish' (or whatever the language is that Inkscape uses now) when that happened?
You can find it in 'System Preferences > International > Language: Order for sorted lists'.
Similar earlier reports:
Bug #488120 “UI language changing gradually to Greek”
Bug #349825 “Download Current Mac Version is French Only!”