Blessed

[Lisa Wittenberg Hillyard]

Blessed as a verb is /blEst/
Blessed as an adjective is /blEs ed/

Are there other examples of this process?

One gets kissed /kist/ under the holly sprig.
*He was the first kissed /kis ed/ guest.

They bussed /bust/ the troops to the city.
*The bussed /bus ed/ troups arrived at noon.

Perhaps, blest is OE spelling, but the pronunciation would persist with
the regular preterit spelling.  Can anyone comment on the adjective
pronunciation? Is it an emphatic usage started in the church (Blessed
Virgin) that has become accepted? or is there another story here?  -lisa