Adjure
[ə-DJUR]
Verb
Middle English, 14th century
Urge or request (someone) solemnly or earnestly to do something. Stems from late Middle English via the Latin “adjurare,” from “ad-” meaning “to” plus “jurare” “swear” (from jus, jur- ‘oath’).
Example: I often have to adjure myself to finish working on my latest novel.
Chief Writing Wolf 