The location of <aiin> and <ain> groups

[Torsten]

There are other line patterns in the text where the statistics for certain words change depending on their position in the line. Another one, similar the one you point out, is that word initial [k] is less common than word initial [t], even excluding Grove Words. Voynichese.com gives 216 occurrences of word initial [t] in such a position, but only 27 of word initial [k]. This may turn out to be an important part of the puzzle.

Interesting observation. In line initial position and word initial position 't' and 'p' are more more common then 'k' and 'f'. 

                       k     t     p    f 
line initial         118   405   385   41

                       k     t     p    f 
word start          1158  1065   545  124    
word medial+final   9778  5898  1085  381    
total              10936  6963  1630  505