S: WHO – http://www.who.int/water_sanitation_health/hygiene/emergencies/fs3_4.pdf (last access: 31 July 2015); http://www.fundsforngos.org/latest-funds-for-ngos/humanitarian-innovation-fund-inviting-researchers-to-test-innovative-latrine-lighting-solutions-in-refugee-camps/ (last access: 31 July 2015).
N: c.1300, probably from Latin latrina, contraction of lavatrina “washbasin, washroom,” from lavatus, past participle of lavare “to wash” (see lave) + -trina, suffix denoting “workplace.” Its reappearance in 1640s is probably a re-borrowing from French; especially of a privy of a camp, barracks, college, hospital, etc. Latrine rumor “baseless gossip” (of the kind that spreads in conversations in latrines) is military slang, first recorded 1918.
2. Frequent use in plural.
S: 1. OED – http://www.etymonline.com/index.php?allowed_in_frame=0&search=latrine&searchmode=none (last access: 4 September 2014). 2. http://esa.un.org/iys/docs/IYS%20Advocacy%20kit%20ENGLISH/Fact%20sheet%205.pdf (last access: 12 March 2013); http://www.who.int/water_sanitation_health/hygiene/emergencies/fs3_4.pdf (last access: 2 September 2014).