Watt and Ampere, to the watt and ampere

• Cardigan and leotard, e.g
• People things are named for
• Those who lend their names
• Seattle and Vancouver
• Achilles' heel and Adam's apple, e.g
• Guillotine and Oscar, e.g
• Ancestors for whom tribes are named
• Curie, Kelvin and Fermi
• Names turned into words

Wiktionary Word definitions in Wiktionary
n. (plural of eponym English)