white-livered

adjective3

1. •
   (no longer used) Lily-livered; cowardly.

   • Some evil fellows said behind his back that Beowulf was white-livered and a slacker. — 1961
2. •
   (no longer used) Having a pale look, once thought to be caused by a white liver.
3. •
   (no longer used) Malicious.