BITS AND PIECES

The words in Column I can be paired up with those in Column II with the addition of the same extra letter - in the same place. The words in Columns II are in random order. What is the extra letter, where is it placed, and what are the new words?

    I                   II
BAND          HER
BUN             RAM
LAB             ON
LIEN            DANCE
NAG            ATE
NOT            ASTER

Answer:

The extra letter is A and it is placed at the beginning of each word in Column I:

ABANDON
ABUNDANCE
ALABASTER
ALIENATE
ANAGRAM
ANOTHER