It is clear that in all these umlaute the new vowel is exactly intermediate between the original vowel of the root and the modifying one of the termination : if the new vowel became identical with its modifier, the result would be not an umlaut but a complete assimilation.

Write this on a bookfell or parchment so long that it may embrace the head on the outside, and hang it on the neck of the man who needs it; it will soon be well with him.

He cast to suffer him no more respire, But gan his sturdie sterne about to weld, And him so strongly stroke, that to the ground him feld.

GRA 06128 and 06129 (hereafter referred to as GRA 06128/9) are paired achondritic meteorites recovered from the same Antarctic icefield.