ل ب ثl-b-th
(س) لَبِثَ يَلْبَثُ لَبْثًاlabitha yalbathu labthan: to stay in a place, to remain; with a negation: not to delay. ﴿كَمْ لَبِثْتُمْ فِي الْاَرْضِ عَدَدَ سِنِيْنَ﴾ (Al-Muʾminūn 23:112); ﴿فَلَبِثَ فِي السِّجْنِ بِضْعَ سِنِيْنَ﴾ (Yūsuf 12:42); ﴿فَمَا لَبِثَ اَنْ جَآءَ بِعِجْلٍ حَنِيْذٍ﴾ (Hūd 11:69)
لَابِثٌlābith pl. لَابِثُوْنَlābithūna (active participle, ism fāʿil): one who stays. ﴿لّٰبِثِيْنَ فِيْهَآ اَحْقَابًا﴾ (An-Nabaʾ 78:23)