Milk

Etymology

The triliteral root lām bā nūn (ل ب ن), according to corpus.quran.com, occurs in the Quran two times.

Connect to Proto-Indo-European «leyǵʰ-» - "to lick".

Whole milk

(16:66) And indeed, for you there is a lesson in the livestock. We give you to drink from what is in its stomachs between the digested food and the blood, whole milk (Arab. لَبَنًا, labanan) which is relieving for the drinkers.