I was reading the etymology of amadouer when I lighted on these attested morphemes:
From Middle French amadouer (“to coax, lure”), from a- + *madouer (“to lure, give food to”), from Old Norse mata (“to lure, feed”), from Proto-Germanic *matōną, *matjaną (“to feed, eat”), from Proto-Indo-European *meh₂d- (“wet”). Cognate with Icelandic mata (“to bait, allure”), Danish made (“to feed”), Gothic 𐌼𐌰𐍄𐌾𐌰𐌽 (matjan, “to eat, have a meal”), Old English mete (“food”). More at meat.
Please see the titled question. How did *meh₂d- semantically shift to mean *matōną? What does eating or feeding have to do with wetness? I know that people drink while eating, but I'd reckon that PIE and Proto-Germanic had verbs for drinking?
Which type of semantic shift is this?