Entries on ثبي in 3 Arabic dictionaries by the authors Ibn Sīda al-Mursī, Al-Muḥkam wa-l-Muḥīṭ al-Aʿẓam, Abu Ḥayyān al-Gharnāṭī, Tuḥfat al-Arīb bi-mā fī l-Qurʾān min al-Gharīb and Habib Anthony Salmone, An Advanced Learner's Arabic-English Dictionary
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ثبي
ثَبَى(n. ac. ثَبْي)
a. Collected, gathered together.
ثَبَّيَa. see Ib. Added to, increased.
c. Kept, guarded.
d. ['Ala], Kept to, persevered in, with.
e. Improved.
ثُبَة
a. Troop, band.