lumme (also lummy)

interj (dated Brit sl 旧, 俚) (expressing surprise 用以表示惊讶).

lugger, lugubrious, lugubriously, lugubriousness, lugworm, lukewarm, lull, lullaby, lumbago, lumbar, lumbar puncture, lumber, lumber-jacket, lumber-room, lumberjack, lumen, luminary, luminosity, luminous, luminously, lump, lump sugar, lump sum, lumpish, lumpsum, lumpy, lunacy, lunar, lunar calendar, lunar month, lunatic, lunatic asylum, lunch, lunch-room, lunch-time, luncheon, luncheon meat, luncheon voucher, lung, lung-power,