Some words to place in front of 'off' to make a compound word are:
A five letter word that will make compound words from that list is FRONT.
day
The word "fire".
pick, high, do, bank
out
daydaylightdaybreakdaytime
day
day
There is no English word with the pattern ?blip.
We can't be sure the answer is accurate without knowing the following words. Consign is one possibility.
con-sign
The word is "land." I realize that's not three letters.