Asunder. It has the words "as" and "under", so it is made up of two individual words, making it a compound word.
Federalism
best friend
Blackmail airmail
Peepshow roadshow sideshow
The last word lol
Passerby is a compound word ending in by.
there is no compound word in English ending with zebra. I looked in the dictionary.
baseballbasketballblackballbutterballcannonballcornballdirtballeyeballfireballfootballfastballfuzzballgumballhairballhandballhighballkickballmeatballmothballnetballoddballpaintballpinballracquetballscrewballsnowballsoftballspitballtarballtrackballvolleyball
One compound word ending with by is......... Driveby!
If I'm not mistaken, REACT is a compound word.
housekeeper
The word is inservice.
houseboat?
there is no compound word in English ending with zebra. I looked in the dictionary.
Compound words ending with belly: beer belly, pot belly
One compound word with the ending -idge is drawbridge.
Sunshine