Radical 钅
13 strokes
錯
gold 钅 (278a) + the old days 昔 (743a) = mistake 错
错误 (731) cuòwù error; be mistaken]
不错 (9) búcuò not bad; quite right]

The sailors were paid in gold in the old days— which was a mistake as it attracted pirates. / So the ghostly dwarf stowed away on the ship to guard the gold.