that word does not exist.
bookendendgameendpointendwaysweekend
Jackknife is the only one I can think of.
bookend, endgame, endmost, endpoint, weekend, endcap
The word twin is not necessarily plural, for example, I have a twin bed. I have a twin brother. Singular in both cases.
'Private life' are two individual words, not compound.
Examples of compound words that end with 'place' are:anyplacebirthplacecommonplacefireplacemarketplaceshowplacesomeplaceworkplace
Twin
Examples of compound words that end with 'deck' are:afterdeckforedeckquarterdecksundeck
Compound words end with time:sometimespringtimesummertimesuppertime
bookendendgameendpointendwaysweekend
compound word for witch
shortcakefruitcakepancakecupcake
bothersomeburdensomefearsomehandsomeloathsomemeddlesometiresometoilsomewholesomewinsome
ebay
Penknife.
anythingeverythingnothingplaythingsomething
antibodyanybodyeverybodynobodysomebody