وياand O غُصناًa bough يؤرِّقُنيkeeps me awake
ويا غُصناً يؤرِّقُني
إِذاwhenever ماemphatic particle اِهتزَّsways مَوْرِقُهits foliage
إِذا ما اِهتزَّ مَوْرِقُه
And O bough that keeps me awake,
O branch that troubles me
Whenever its foliage sways.
When its leaves tremble
Sol 6.1