tears of love
Poetic or literary word for tears shed because of love or romantic longing. Not used in everyday conversation.
彼女の頬を恋水が伝った。
Tears of love ran down her cheeks.
Compound of 恋 (こい, 'love') and 水 (みず, 'water'), literally 'love water'. The exact origin is uncertain, but it is a poetic coinage for tears of love.