There are pairs of words which can be interlaced or interleaved to form new words.
For example, PRIG and URN can be interlaced to form the word PURRING:
P R I G
U R N
P U R R I N G
For another example, HAS and ERE can be interlaced to form the word HEARSE:
H A S
E R E
H E A R S E
Notice that in the first example, URN fits snugly inside of PRIG, but in the second example HAS and ERE are shifted relative to each other. It doesn't matter, as long as the letters are properly interlaced, meaning that each word in the pair contributes alternating letters to the combined word.
See if you can match each word in Column A with its partner in Column B and interlace them to form a new word. The resulting combined words should be fairly common, or at least well-known, so if you find yourself chasing obscure words then you may be overthinking it.
Each item in Column A is used exactly once, and each item in Column B is used exactly once.
Column A Column B