This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Present participle of principle.

"As for the Bible, which children are usually employ’d in to exercise and improve their talent in reading, I think the promiscuous reading of it through by chapters as they lie in order, is so far from being of any advantage to children, either for the perfecting their reading, or principling their religion, that perhaps a worse could not be found."

principle