fabimā
Because
REM – prefixed resumption particle fa + P – prefixed preposition bi + REL – relative pronoun
Root Link: ب م ا
aghwaytanī
You have sent me astray
V – 2nd person masculine singular (form IV) perfect verb + PRON – subject pronoun ta + PRON – 1st person singular object pronoun nī
Root Link: غ و ى
la-aqʿudanna
surely I will sit
EMPH – emphatic prefix lām + V – 1st person singular imperfect verb + EMPH – emphatic suffix nūn
Root Link: ق ع د
lahum
for them
P – prefixed preposition lām + PRON – 3rd person masculine plural personal pronoun hum
Root Link: ل
ṣirāṭaka
(on) your path
N – accusative masculine noun + PRON – 2nd person masculine singular object pronoun ka
Root Link: ص ر ط
l-mus'taqīma
straight
DET – determiner prefix al + ADJ – accusative masculine (form X) active participle
Root Link: ق و م