[pruh-lawng, -long] 
| 1. | to lengthen out in time; extend the duration of; cause to continue longer: to prolong one's stay abroad. |
| 2. | to make longer in spatial extent: to prolong a line. |
| pro·long (prə-lông', -lŏng') tr.v. pro·longed, pro·long·ing, pro·longs
[Middle English prolongen, from Old French prolonguer, from Late Latin prōlongāre : Latin prō-, forth; see pro-1 + Latin longus, long; see del-1 in Indo-European roots.] pro·long'er n. |
