Origin of leal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Scot loyal; faithful
Word Origin for leal
C13: from Old French leial, from Latin lēgālis legal; related to loyal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
"loyal, faithful, honest, true," c.1300, lele, surviving from Middle English as Northern English and Scottish form of loyal. The Land of the leal is Heaven, not Scotland.
Online Etymology Dictionary, © 2010 Douglas Harper