فتَمِيسُthen sway الغصونthe boughs زَهْواproudly إذاwhen غَنْsing (first part)
فتَمِيسُ الغصون زَهْوا إذا غَنْ
نَتْ(completes 'sing') عليهنupon them مُطْرِباتُmelodious الطيورِthe birds
نَتْ عليهن مُطْرِباتُ الطيورِ
Then the boughs sway proudly when
The branches exude vitality when
the melodious birds sing upon them.
The songbirds trill upon them
وكأنand as though المياهَthe waters فيin الجدولthe stream الجاthe flowing (first part)
وكأن المياهَ في الجدول الجا
ري(completes 'flowing') حُسامٌa sword فيin راحَتَيْthe two palms of مذعورa frightened man
ري حُسامٌ في راحَتَيْ مذعور
And it is as though the water in the flowing stream
And it's as though the waters in the flowing
were a sword in the two palms of a frightened man.
Brooks are frightened swords in sheaths