There are 12 words that start with 'surpl'.
| surplus | surplice | surpliced | 
| surplices | surplused | surpluses | 
| surplusage | surplusing | surplussed | 
| surplusses | surplusages | surplussing | 
Note: These 12 words that start with 'surpl' are found from the USA & Canada version of the tournament Scrabble word list.