idle: (a) Not engaged in any work or occupation. (b) Of no importance, trivial (idle chatter). From Old English “idel”=empty or useless.

idol: (a) Representation or symbol of an object of worship; (b) a person of extreme devotion (pop idol). From Greek “eidolon”=image.

ignominious: Deserving disgrace or shame. From Latin “ignominia”=loss of name < “in-“=not + “nomen”=name.

ignore: Refuse to take notice of. to mistake, misunderstand, disregard,. Latin “ignorare”=not to know < “in-“=not + “gno”=to know.

illusion: Something that seems to be different from the way it really is. From Latin “illudere”=to mock.

imagine: Conceive in the mind as something to be performed. Middle French “imaginer”=to assume, suppose < Latin “imago”=image.

immense: Too big to be measured; beyond measurable size. From Latin “immensus”=boundless < “im-“=negative prefix + “mentiri”=to measure.

impediment: Barrier, stumbling block, blockage. From Latin “impedire”=to shackle the feet < “im”=in + “pedem”=foot + “-ment”=noun-suffix.

imposter: Someone who engages in deception under an assumed name. From Latin “imponere”=to deceive < “in”-in + “ponere”=put in place.

improbity: Wickedness or dishonesty; wanting of integrity. Latin “improbus”=wicked < “im-“=without + “probitas”=moral integrity, honesty.

independence: State of not being controlled by others. Latin “in-“=not + “de-“=down + “pendere”=to hang + “-entia”=noun forming suffix.

incendiary: Arousing to action or rebellion. From Latin “incendere”=to set on fire < “in-“=in + “candere”=to glow or shine,

incubus: Evil demon that sits on sleepers, particularly to have sex with women. From Latin “incubo”=nightmare < “incubare”=to lie upon.

indemnify: make amends or pay compensation for. From Latin “indemnis” < “in”=not + “damnum”=loss or damage. Lit. “not damage.”

indolent: Given to avoiding activity, effort, or movement. Lazy. From Latin “in”=not + “dolere”=to feel pain.

inglorious: Shameful or lacking in honor. From Latin “in”=not + “gloriosus”=full of glory.

insipid: Someone or something deficient in sense, spirit, or taste. From Latin “insipidus” < “in-“=without + “sapidus”=tasty, wise, prudent.

instigator: Someone who deliberately starts trouble. From Latin “instigare”=to urge on.

invader: Someone who enters a country or area in a hostile manner. From Latin “in-“=into + “vadere”to go, walk + “-er”=one who is or does.

inveigle: Influence or urge by gentle urging, caressing, or flattering; deceive. Latin “aboculum”=”ab”=away + “oculus”=eye.

Iran: Modern name (from 1935) for Persia. From Old Persian “aryana”=person of Arya. Ultimately thought to mean “noble warriors.”

irascible: Characterized by anger; easily provoked. From Latin “irascibilis” < “irasci”=to grow angry < “ira” < anger (c.f. “ire”).

irk: To make weary, irritated, or bore. Middle English “irke(n)”=to grow weary. Uncertain origin prior to this.

issue: Act of going, leaving, exiting. From Old French “departir” < Latin “dispertire”=”dis”=apart + “partire”=to part or divide.

ivory: Material from elephant tusks used to create ornaments. From Latin “eboreus” < “ebor”=ivory, poss. < Sanskrit “ibhas”=elephant