اب

10 اِسْتَأَبَّهُ ذ He adopted him as a father; an extr. form; (IAar, M;) from أَبٌّ, a dial. var. of أَبٌ: (TA:) regularly, اِسْتَأْبَاهُ. (M.) And استأبّ أَبًا and اِسْتَأْبَبَ أَبًا He adopted a father. (TA in art. ابو.)