Something is scratching for attention down at the lower depths of memory about this particular theme. Lovers' combs, I mean. Perhaps if I stop concentrating on it, it will rise to the surface?
I think it's just a part of the wife's memory, so it occurs the past time with his wife.
And the word itself is not really inportant, i guess you should figure out a connection of 5 worlds- comb,hill, bed,wife, chill.
The important thing is that all of them are concrete words. they are visual imagery, however form them you can get the tactile imagery of coldness.
it's just my oppinion.^^