welt

nouns

a raised mark on the skin (as produced by the blow of a whip); characteristic of many allergic reactions
a raised or strengthened seam
is a type of (narrower)
joint consisting of a line formed by joining two pieces

verbs

beat severely with a whip or rod
"The teacher often flogged the students"; "The children were severely trounced"
put a welt on
"welt the shoes"
is a type of (narrower)
make an addition (to); join or combine or unite with others; increase the quality, quantity, size or scope of
"We added two students to that dorm room"; "She added a personal note to her letter"; "Add insult to injury"; "Add some extra plates to the dinner table"