What is the meaning of Ne-?

I. First person singular pronoun added to a verb to show its subject.

My. First person singular possessive pronoun added to a noun to show its possessor.

to look

forms the negative subjunctive mood of verbs.

not

used to negate verbs, adjectives, and adverbs. Akin to un-, non-, im-, ir-

non- (Used to negate some words.)

Used to negate verbs, adjectives, and adverbs; non-, un-, in-, im-, ir-.

absolutely negates the principal meaning

Used on all verb forms to form the negative version of that form (runāju (I speak), nerunāju (I don't speak)), as well as on nouns and adjectives to indicate negation (like Latin in-, im-; English un-; or Russian не- (ne-)).

Used on all verb forms to form the negative version of that form, as well as on nouns, adjectives and adverbs to indicate negation.

un-; de- (attached to past participles, gerundives and some adjectives to negate them)

Prefix prepended to adjectives to create an adjective denoting a negative meaning (ne (not)). Akin to un-, non-, im-, ir-.

Source: wiktionary.org