أَتَغَثَّثُ مَا أَنَا عَلَيْهِ حَتَّى أَتَسَمَّنَ
means (assumed tropical:) I do what is of an inferior kind that I may find much; as also
أَسْتَغِثُّهُ: (A, TA:) or أَتَغَثَّثُ
حَتَّى أَسْتَسْمِنَ, meaning (assumed tropical:) I deem my doing to be little that I may obtain thereby much recompense. (O.)