- To boil or cook thoroughly.(Obs)
- To boil in part; to cook partially by boiling.
- Hence:(Fig)To do (something) only part way, or incompletely. Also used intransitively.
Etymology: OE. parboilen, OF. parbouillir to cook well; par through (see Par) + bouillir to boil, L. bullire. The sense has been influenced by E. part. See 1st Boil