Threshold (architecture)

[1] Although modern dictionaries do not yet record the results of the latest etymological research on this word, they do record the results of older research that shows that the second half is not related to the modern word hold.

The word’s original form became obscure quite early and produced a whole bouquet of folk etymological doublets.

We are missing the moment at which the threshing floor, however primitive, began to denote the entrance to the room.

[1]In many cultures it has a special symbolism: for instance, in Poland, Ukraine and Russia it is considered bad luck to shake hands or kiss across the threshold when meeting somebody.

[2][3] In many countries it is considered good luck for a bridegroom to carry the bride over the threshold to their new home.