to open one's mouth to be surprised 2 realizations
ACCEPTED Realization 1
type Polysemy
language Meadow Mari
lexeme умшам караш
meaning 1 to open one's mouth
direction
meaning 2 to be surprised

Теве эрла Макар умшажым кара


Indeed Makhar will open his mouth wide tomorrow

reference Marij jylme muter
comment

The direction of the shift is evident from the non-compositionality of the second menaing

ACCEPTED Realization 2
type Derivation
language Old French
lexeme 1 baer
lexeme 2 ébahir
meaning 1 to open one's mouth

bayer aux corneilles (expression)


to stand gaping

direction
meaning 2 to surprise

s’ébahir d’une nouvelle


be astonished at a piece of news

reference DAF
comment

The word "baer" is a variant of "bayer" from old texts