From Merriam-Webster:
Main Entry: kin·dle
Pronunciation: \ˈkin-dəl\
Function: verb
Etymology: Middle English, probably modification of Old Norse kynda; akin to Old High German cuntesal fire
Date: 13th century
Definition (1): transitive verb: to start (a fire) burning : light
The temperature at which books kindle: Fahrenheit 451
Definition (2): noun: Amazon.com’s Wireless Reading Device