ki + ka > gla

[Rankin, Robert L.]

John Koontz had a good explanation of this in one of his papers.  I've explained about all I have time for right now about the BL, GL sequences.  I might mention that the same kinds of argument apply in the case of PT, PC, PK (where permitted), PS, etc.  The P is also a reflex of *wV- and acts as a "syllable" for accent placement.

Bob
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