Following up on our questions from March 2010 about how to mark up unattested glosses , we concluded the following:

An unattested gloss should be in its own <seg>, have type="u", and have a following <bibl> tag identifying the editor who supplied the gloss - generally ECH:

So this:

<seg><gloss>knot</gloss>ted up (one knot) <<gloss>tie</gloss>></seg>
<bibl>Y13.2</bibl>

Would change to this:

<seg><gloss>knot</gloss>ted up (one knot)</seg> <bibl>Y13.2</bibl>
<seg><gloss type="u">tie</gloss></seg> <bibl>ECH</bibl>

I will need to process these manually.