كأنهاas though she علقتhad fastened فيهنupon them (feminine plural) أجزِيهاI repay her (as written; possibly a misprint for أَجْرِيها, ‘her pups’)
كأنها علقت فيهن أجزِيها
أمmother of العابرthe dog (al-ʿĀbir) فيat كشحa flank وفيand at قَرَبa waist
أم العابر في كشح وفي قَرَب
As though she had fastened her [pups?] upon them—
As if she hung on them her parts
Umm al-ʿĀbir, the she-dog—at flank and waist.
The mother of the passerby in Kushah and Qarab
Sol 6.1