We have seen what a united Spain can do, and long may Spain remain one, unsundered nation.
It is a tribute to our friendship that three weeks later we reached Loring Castle, Chepstow, unsundered and harmonious.
Old English sundrian, from sundor "separately, apart," from Proto-Germanic *sunder (cf. Old Norse sundr, Old Frisian sunder, Old High German suntar "aside, apart"), from PIE root *sen(e)- denoting "separation" (cf. Sanskrit sanutar "far away," Avestan hanare "without," Greek ater "without," Latin sine "without," Old Church Slavonic svene "without," Old Irish sain "different"). Related: Sundered; sundering.