Miguel:
>Then why is Skt. /u/ not lengthened in an open syllable?
But *u is treated differently morphologically than *o. It is *e
and *o that are used in verbal ablaut, not *u. Both *u
and *o might have the same length but not the same
weight, so to speak, since *u is a zerograde diphthong
while *o is not.
= gLeN
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