ARTIFACTS IN THE TEXT.

[nablator]

In Latin, "fused glyphs" are called ligatures and they are as much a part of Latin script as abbreviations. In fact, some of the Latin abbreviations are also ligatures.

Maybe fused is not the right word then (is hybrid clearer?) to get the meaning across.  I am positing a "write once read twice" system for individual strokes resulting in cases that look like simple ligatures such as {co} = ch+o and also in some complex benched gallows such as (f11r.5) SHPh = Sh+cPh.