domestic

1515–25; < Latin domesticus, derivative of domus house (see dome); replacing domestique < Middle French

The English word domestic ultimately comes from Latin domesticus, formed from the noun domus “house, home, family, household (with dependents), school (of philosophy).” The adjectival suffix -esticus is a combination of two suffixes: -estis (the adjective domestis does not exist in Latin) and -ticus (borrowed from rusticus “pertaining to a farm or farming, rural, provincial”).
When the adjective domestic first appeared in English in the early 16th century, it meant “housed.” The sense “relating to one’s own country” dates to 1545, and Shakespeare was presumably the first to use domestic in the sense “relating to one’s home or family affairs.”
The noun domestic “something made in the home” dates from the first half of the 17th century. In the United States, in the first half of the 19th century, domestic developed the specific meaning “homemade cotton cloth.” Its plural domestics now means “household items made of cloth, such as sheets, towels, and tablecloths.”
Domus comes from the Proto-Indo-European root dem-, dom- (with variants) used to form a verb “to chop (wood), build" as well as the noun "a house.” Dom- is also the source of Greek dómos “house,” Sanskrit dáma- “house, building,” Slavic dom “house, home.” The variant dem- forms Greek démein “to build”; the suffixed root demro- becomes timra- in Germanic, whose derivative noun timram “building material, wood,” becomes timber in English.
The English word dome, “a vault, having a circular plan and usually in the shape of a portion of a sphere,” ultimately derives from Latin domus (Deī) “house (of God),” which becomes Italian duomo and German Dom, both meaning “cathedral.”