have a certain weight
"The heavy suitcase weighed twenty pounds when I lifted it onto the scale."
To determine the weight of an object.
"The scale will weigh your luggage before you board the plane."
In plain English: To weigh means to find out how heavy something is by putting it on a scale.
"She needs to weigh her luggage before she can board the plane."
A surname.
"The Weigh family has lived in this village for three generations."
The word "weigh" comes from the Old English wegan, which originally meant to move or carry something before evolving into its current sense of measuring weight. This root traces back through Proto-Germanic and Indo-European languages where it described bringing or transporting goods, explaining why related words like wagon and way share this history.