7. At or in the time of; during; as, on Sunday we abstain from labor. See At (synonym).
8. At the time of, conveying some notion of cause or motive; as, on public occasions, the officers appear in full dress or uniform. Hence, in consequence of, or following; as, on the ratification of the treaty, the armies were disbanded.
9. Toward; for; — indicating the object of some passion; as, have pity or compassion on him.
10. At the peril of, or for the safety of. "Hence, on thy life." Dryden.
11. By virtue of; with the pledge of; — denoting a pledge or engagement, and put before the thing pledged; as, he affirmed or promised on his word, or on his honor.
12. To the account of; — denoting imprecation or invocation, or coming to, falling, or resting upon; as, on us be all the blame; a curse on him. His blood be on us and on our children. Matt. xxvii. 25.
13. In reference or relation to; as, on our part expect punctuality; a satire on society.
14. Of. [Obs.] "Be not jealous on me." Shak. Or have we eaten on the insane root That takes the reason prisoner Shak.
Note: Instances of this usage are common in our older writers, and are sometimes now heard in illiterate speech.
15. Occupied with; in the performance of; as, only three officers are on duty; on a journey.