بطّأبِهِ
[and بطّأهُ, verbal noun as below, It made him slow, tardy, dilatory, late, or backward;] it kept him, or held him, back; or put him back, or backward. (TA.) It is said in a tradition, مَنْ بَطَّأَ بِهِ
عَمَلُهُ لَمْ يُسْرِعْ بِهِ نَسَبُهُ
Him whom his evil deeds keep, or hold, back, or put back, or backward, his nobility of lineage will not profit, [or advance, or put forward,] in the life to come, or in the world to come. (TA.) بِكَ
مَا أَبْطَأَ and مَا بَطَّأَ signify the same [What made thee, or hath made thee, slow? &c.]; (S, TA;) and so مَا بَطَّأَكَ. (TA.) And you say, بَطَّأَ عَلَيْهِ بِالأَمْرِ, verbal noun تَبْطِىْءٌ; and
بِهِ
ابطأ; He delayed to him [the doing of] the thing, or affair. (K.)