Frae Wikipedia, the free beuk o knawledge
A picter o a bodies left lüf.

The Luif is the paum o yer haund that haes five banes ilka ane connectit tae a finger-bane, alang wi monie sesamoid banes pittin intil the leaders for tae gie ye mair leverage an for tae lessen pressur on the unnerlyin tissue.

Forby thon Luif can mean a poseetion o the haund whaur the luif is veesible, an the fingers is splayed oot.