Non

1.
a prefix meaning “not,” freely used as an English formative, usually with a simple negative force as implying mere negation or absence of something (rather than the opposite or reverse of it, as often expressed by 1. ): nonadherence; noninterference; nonpayment; nonprofessional .
[nah-too-rah nohn fah-kit sahl-too m; English nuh-too r-uh non fey-sit sal-tuh m, -tyoo r-] /nɑˈtu rɑ noʊn ˈfɑ kɪt ˈsɑl tʊm; English nəˈtʊər ə nɒn ˈfeɪ sɪt ˈsæl təm, -ˈtyʊər-/
Latin.
1.
nature makes no leap.
[nohn kohm-pohs men-tis; English non kom-puh s men-tis] /ˈnoʊn ˈkoʊm poʊs ˈmɛn tɪs; English ˈnɒn ˈkɒm pəs ˈmɛn tɪs/
adjective, Latin.
1.
not of sound mind; mentally incapable of managing one’s affairs.
[nohn ohb-stahn-te; English non ob-stan-tee] /noʊn oʊbˈstɑn tɛ; English nɒn ɒbˈstæn ti/
preposition, Latin.
1.
.
[nohn plah-ket; English non pley-sit] /noʊn ˈplɑ kɛt; English nɒn ˈpleɪ sɪt/
noun, Latin.
1.
it is not pleasing.
[nohn poh-soo-moo s; English non pos-uh-muh s] /noʊn ˈpoʊ sʊˌmʊs; English nɒn ˈpɒs ə məs/
noun, Latin.
1.
we cannot.
[per-soh-nah nohn grah-tah; English per-soh-nuh non grah-tuh, grey-, grat-uh] /pɛrˈsoʊ nɑ noʊn ˈgrɑ tɑ; English pərˈsoʊ nə nɒn ˈgrɑ tə, ˈgreɪ-, ˈgræt ə/
noun, plural personae non gratae
[per-soh-nahy nohn grah-tahy; English per-soh-nee non grah-tee, grey-, grat-ee] /pɛrˈsoʊ naɪ noʊn ˈgrɑ taɪ; English pərˈsoʊ ni nɒn ˈgrɑ ti, ˈgreɪ-, ˈgræt i/ (Show IPA). Latin.
1.
a person who is not welcome: He has become persona non grata
in our club since his angry outburst.
2.
a diplomatic representative unacceptable to an accrediting government.
[kou-sah si-ne kwah nohn; English kaw-zuh sahy-nee kwey non, kaw-zuh sin-ey kwah nohn] /ˈkaʊ sɑ ˈsɪ nɛ kwɑ ˈnoʊn; English ˈkɔ zə ˈsaɪ ni kweɪ ˈnɒn, ˈkɔ zə ˈsɪn eɪ kwɑ ˈnoʊn/
noun, Latin.
1.
an indispensable condition; requisite.
[de goo s-ti-boo s nohn est dis-poo-tahn-doo m; English dee guhs-tuh-buh s non est dis-pyoo-tan-duh m] /dɛ ˈgʊs tɪˌbʊs noʊn ɛst ˌdɪs pʊˈtɑn dʊm; English di ˈgʌs tə bəs nɒn ɛst ˌdɪs pyʊˈtæn dəm/
Latin.
1.
there is no disputing about tastes.
prefix
1.
indicating negation: nonexistent
2.
indicating refusal or failure: noncooperation
3.
indicating exclusion from a specified class of persons or things: nonfiction
4.
indicating lack or absence, esp of a quality associated with what is specified: nonobjective, nonevent
/ˈnɒn ˈkɒmpəs ˈmɛntɪs/
adjective
1.
mentally incapable of managing one’s own affairs; of unsound mind
/pɜːˈsəʊnə nɒn ˈɡrɑːtə/
noun (pl) personae non gratae (pɜːˈsəʊniː nɒn ˈɡrɑːtiː)
1.
an unacceptable or unwelcome person
2.
a diplomatic or consular officer who is not acceptable to the government or sovereign to whom he or she is accredited

prefix meaning “not, lack of,” or “sham,” 14c., from Anglo-French noun-, from Old French non-, from Latin non “not, by no means, not at all, not a,” from Old Latin noenum “not one” (*ne oinom, from PIE *ne “not” + *oi-no-; see one). In some cases perhaps from Middle English non “not” (adj.), from Old English nan (see not).

Latin, literally “not master of one’s mind.”

non- pref.
Not: noninvasive.

non compos mentis non com·pos men·tis (nŏn kŏm’pəs měn’tĭs)
adj.
Not of sound mind and hence not legally responsible; mentally incompetent.
De gustibus non est disputandum [(day goos-ti-boos nohn est dis-poo-tahn-dem)]

Latin for “There’s no disputing about taste.” Another version of this saying is “There’s no accounting for taste.”
non compos mentis [(non kom-puhs men-tis)]

A phrase used to describe someone who is out of his or her mind and therefore not legally responsible for his or her actions: “It was determined by the court that the killer was non compos mentis.” From Latin, meaning “not having control of the mind.”
persona non grata [(puhr-soh-nuh non grah-tuh, grat-tuh)]

A person who is no longer favored or welcome: “After my angry words with the manager, I am persona non grata at the video store.” From Latin, meaning “an unacceptable person.”
nonsmoking (area of restaurant)