8 letters · 8 points in Scrabble
verb cause (a chemical compound, vapour, solution, magnetic material) to unite with the greatest possible amount of another substance
verb infuse or fill completely
originThe adjective is first attested in the second part of the 15ᵗʰ century, in Middle English, the verb in 1538, the noun in 1921; inherited from Middle English saturat(e) (“satiated, satisfied”), borrowed from Latin saturātus, perfect passive participle of saturō (“to fill, satisfy, quench”) (see -ate (etymology 1, 2 and 3)), from satur (“full”) + -ō (verb-forming suffix).
Etymology from Wiktionary, CC BY-SA 3.0