Seven-letter words - change zero to two letters to make a new word (Part 1)

erotica

Carioca

carotid

carrots

Croatia

matador

Ramadan

adamant

mandate

manatee

emanate
doesn’t change any,
so,
eminent

anytime

Bettany

natters

batters

shutter

retouch

redoubt

routers

trouble