PIE genitive plural *-o:m, a possible analysis

From: Patrick Ryan
Message: 44124
Date: 2006-04-04

An idea occurred to me today that I would like to offer for criticism and comment.
 
I have long believed that the *o-stem genitive singular, -*�s, should be regarded as a simple prosodic variation of the nominative singular -*os � a simple shift of the stress-accent from the root to the post-root syllable.
 
I propose that the earliest neuter nominative singular in -*om formed a nominative plural in -*�m, and the neuter genitive plural was differentiated from it by length: -*�:m.
 
Subsequently, the neuter nominative plural was re-formed with -*Ha(:), leaving -*�:m as the neuter genitive plural without a prosodic counterpart in the nominative.
 
This neuter genitive plural form was subsequently adopted by the -*o-stems.