geminate (adj.) Look up geminate at
"duplicated, found in pairs," early 15c., from Latin geminatus "twinned, equal," past participle of geminare "to double, repeat," related to geminus "twin, born together; paired, double," perhaps from PIE *yem- "to pair." As a verb, from 1630s. Related: Geminated; geminating; geminative. Gemmels (plural) was Middle English for "twins" (latge 14c.), also "Gemini," from Old French gemeles; hence also gemel ring, a double-ring that may be taken apart.