Word Patterns are those patterns which occur within words at the level of characters, either singularly or in groups. It is often observed that the words of the Voynich text are highly structured with a high level of predictability. Certain characters and sequences follow one another very often.
This word structure has been heavily studied. Many researchers have been able to decompose words into regular parts and propose methods of generating valid words from regular expressions. Some of these are sophisticated and insightful, particularly the work of Jorge Stolfi.
However, this page will not comprehensively list all past or current hypotheses on Word Patterns. Its goal is to list as many observations as possible while limiting hypotheses to only those I consider correct.
Variation of [y] and [a]: the character [a] is a variant of [y] which is found before the characters [l, r, i, n, m].