حتىuntil إذاwhen ماemphatic particle الليلُthe night قَوْstruck camp (first part of split verb)
حتى إذا ما الليلُ قَوْ
وَضَstruck camp (second part of split verb) راحلاًdeparting عندat الغَلسْthe predawn gloom
وَضَ راحلاً عند الغَلسْ
Until, when the night struck
When night's darkness falls
camp, departing in the predawn gloom,
And the traveler rests at dusk
وبداand appeared الصباحُthe morning كغُرَّةٍlike a white forehead blaze
وبدا الصباحُ كغُرَّةٍ
تَبدوappears علىon وجهِface of الفَرسْthe horse
تَبدو على وجهِ الفَرسْ
and morning appeared like a white blaze
And morning breaks like a rose
that appears on a horse’s face.
Blossoming on the steed's face
Sol 6.1