"Family" is from the Latin word familia, which means "family; household" and, originally, "slaves of the household". The word for an individual slave was famulus for a male, famula for a female.
Characteristically
The past tense of the verb to keep can also be used as an adjective (e.g. kept woman).
lonely homily
"Word families" are groups of rhyming words. A word family for fleet is below. beetfeetgreetmeetsheetsleetstreetsweet