Meaning & History
From a place name derived from Old English mearc "boundary" and denu "valley".
Date | Editor | Change Summary | |||
1/22/2019, 10:01 AM | Mike C | update #101 | |||
2/12/2018, 1:19 AM | Mike C | update #98 | |||
12/3/2014, 12:28 AM | Mike C | update #89 | |||
5/30/2011, 5:41 PM | Mike C | earliest recorded revision |