Why turkey has the same name as Turkey
1530s, "to satisfy, satiate," from Latin saturatus, past participle of saturare "to fill full, sate, drench," from satur "sated, full," from PIE root *sa- "to satisfy" (see sad). Meaning "soak thoroughly" first recorded 1756. Marketing sense first recorded 1958. Related: Saturated; saturating.
saturate sat·u·rate (sāch'ə-rāt')
v. sat·u·rat·ed, sat·u·rat·ing, sat·u·rates
To imbue or impregnate thoroughly.
To soak, fill, or load to capacity.
To cause a substance to unite with the greatest possible amount of another substance.
To satisfy all the chemical affinities of a substance; neutralize.
To dissolve a substance up to that concentration beyond which the addition of more results in a second phase.