Answer : Después de probarle el traje, el sastre lo cosió definitivamente y tuvo que deshilvanar las costuras provisionales antes de entregarlo.
Deshilvanar means to remove basting threads from a dress.
If the starting tense is future and in the ellos form and its a regular verb the answer would be comprarían.
The most known Christopher Columbus statue is located in Barcelona (Spain). It's a 60m height monument. But you can find a statue of Him in Brooklyn N.Y. (U.S.), in santo domingo (Capital of Dominican Republic), etc...
The Picture below represents the Columbus Monument in Barcelona, Spain.
Hope this Helps! :)
I don’t think there’s a word for that but maybe casanínio