Khloe Kardashian -- I'm Not Giving Up on Lamar

Khloe Kardashian has been a stalwart wife ... continuing her commitment to the rehabilitation of Lamar Odom.

Khloe visited Lamar the day after Christmas at Cedars Sinai hospital, where the former NBA star has been laid up for months after his OD.

It's interesting ... Khloe had her divorce proceedings dismissed, yet everything we hear is that she is not trying to resurrect the relationship ... she just wants to help him.