Myriameter
/ˌmɪriˈmɛtər/noun
A metric unit equal to 10,000 meters.
Did you know?Myriameter was once an official metric unit in some 19th-century systems, but it vanished as the metric system standardized around kilometers.
Etymological Timeline
Ancient Greek
Greek
μυριάς (myrias)
“ten thousand; a countless multitude”
Latin
Latin
mille
“thousand”
French
French
myriamètre
“a metric measure of 10,000 meters”
19th Century
English
myriameter
“a unit of length equal to 10,000 meters”
Modern English
English
myriameter
“an obsolete metric unit of 10,000 meters”