Jastrow: הַבְלָעָה

הַבְלָעָה f. (בלע) [absorption,] payment for a thing included in the bargain (and not mentioned); indirect sale or purchase. Erub. 27ᵇ שנתן דמי … בד׳ he paid the full value of the salt and water indirectly (by paying so much more for the oil for which he bargained). Bekh. 31ᵇ מוכרין אותו בה׳ it is sold in connection with other things. Ned. 37ᵃ ה׳ היא the teacher’s fee for the Sabbath lessons is included in the general engagement (by the week, the month &c.).