lòu
leak
Originally written as 屚, which depicts rainwater (雨) leaking through a house roof (屋). The 氵 (water) component was added later to clarify the meaning.
Seal script
Clerical script
Clerical script
Clerical script
Regular script
lòu
leak, drip; funnel; hour glass; to leak; to divulge; to leave out by mistake; waterclock or hourglass (old)
李学勤《字源》p.1011, 1025
許進雄《新編進階甲骨文字典: 甲骨文發現120周年紀念版》p.204