Seven letter words change one or two letter to make a new word

innings

signing

sighing

gigging

rigging

singing

ginseng

kindling

[“kindling” hath letters numbering eight. Back to “ginseng”]

incense

my apologies for kindling. Not sure why I played that.

cinemas

chimera

climate

melting

wilting

writing

stewing

brewing

rainbow

browned

wronged