Answer:
The southerners who collaborated with the northerners for the reconstruction and African-American equality were called scalawag.
Step-by-step explanation:
The first usage of the term 'scalawag' can be traced back to which was used to refer to people who had an ill reputation. But by during the Reconstruction Era, the Southern Democrats in the South of America used this term to refer to white southerners who had sided with the Republicans and favored the Republican policies.
In America, the Southern wealth was largely dependent on the plantations that could run thus profitably owing to the large numbers of free black slaves. The people mostly called scalawags were people from the south who belonged to the middle class and wanted to restructure the social order.
Seeing as they were a threat to the established hierarchy, they were subjected to the slur.