Tancred or Tankred is a masculine given name of Germanic origin that comes from thank- (thought) and -rath (counsel), meaning "well-thought advice". It was used in the High Middle Ages mainly by the Normans (see French Tancrède) and especially associated with the Hauteville family in Italy.
Tannin is an English name for boys meaning Tan colored; dark. Read below for Tannin's celebrity and ruler associations, and numerological meanings. If Tannin is the one, congratulations!