This is the 9352nd most frequent Korean word.
격려한
Encouraged.
This usage of '격려한' functions as an adjective modifying '말을,' describing the words as being encouraging.
그녀는 친구에게 따뜻한 격려한 말을 건넸습니다.
She gave warm encouraging words to her friend.
Here, '격려한' attaches to '태도로,' describing the attitude as encouraging.
격려한 태도로 학생들을 대하는 교사가 필요합니다.
A teacher who approaches students with an encouraging attitude is needed.
In this sentence, '격려한' is used adjectivally to characterize the facial expression as encouraging.