ب ت لb-t-l
(ن) بَتَلَ يَبْتُلُ بَتْلًاbatala yabtulu batlan: to cut off and separate.
Form V (tafaʿʿul) تَبَتَّلَ يَتَبَتَّلُ تَبَتُّلًاtabattala yatabattalu tabattulan: to cut oneself off from everything and devote oneself wholly, to turn to God completely. Twice in the Quran, in a single verse: ﴿وَتَبَتَّلْ إِلَيْهِ تَبْتِيْلًا﴾ (Al-Muzzammil 73:8) — Note: the verb is from تفعّلtafaʿʿul, but the verbal noun (maṣdar) of form tafʿīl is used, for emphasis.
بَتُوْلbatūl: a woman who cuts herself off from the world and devotes herself to worship.