— prolongable , adj. — prolongableness , n. — prolongably , adv. — prolonger , n. — prolongment , n.
/preuh lawng", -long"/ , v.t.
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.
[ 1375-1425; late ME prolongen prolongare to lengthen, equiv. to pro- PRO- 1 + long ( us ) LONG 1 + -a- theme vowel + -re inf. ending ]
Syn. 1. See lengthen .
Ant. 1. abbreviate.