a combining form used in genealogical terminology meaning “one generation more remote”: grandfather; grandnephew.
Origin of grand-
special use of grand
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(in designations of kinship) one generation removed in ascent or descentgrandson; grandfather
Word Origin for grand-
from French grand-, on the model of Latin magnus in such phrases as avunculus magnus great-uncle
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