陌 (mò) originally referred to an east-west path between cultivated fields, while
阡 (qiān) referred to a north-south path. The compound
阡陌 (qiānmò) means 'the paths between fields' and is a classical literary image of a pastoral landscape.
陌 now appears mainly in
陌生 (mòshēng, 'unfamiliar; strange') and literary usage.