Pumpkin muffins

I found this recipe in a book I was reading.  Someone should try these but what does "dredge" mean?  See instructions below.

Pumpkin Mini Chocolate Chip Muffins

1/4 C. soft butter or margarine

1 C. sugar

1 C. fresh or canned pumpkin

2 eggs

3 1/2 C. flour (divided use)

4 t. baking powder

1/2 t. cinnamon

1/2 t. nutmeg

1/2 t. salt

1 1/4 C. 2% milk

1 C. mini chocolate chips

Preheat oven to 400 degrees.  Put muffin cups into muffin tins or grease the tins.

Cream butter (or margarine) and sugar until fluffy.  Beat in pumpkin and eggs.  Dredge chocolate chips in 1/2 cup of flour. Sift remaining flour and cinnamon, nutmeg, and salt together.  Pour milk into mixing blow.  Stir in dry ingredients by hand until just mixed.  Fold in the chocolate chips.  Spoon batter into paper cups in in muffin tin.  Bake for 20-25 minutes.