The prefix "re-" can mean do again, and the Latin root "juven" means youth, so it makes sense that "rejuvenate" means make someone or something look or feel young again. This is very close to the meaning of the word “revitalize,” which means give new life to. As for the other answer choices, “homogenize” means make uniform or standardize; “grovel” means beg while on one's knees on the ground; “truncate” means shorten; and “pardon” means officially forgive.

Do not be tricked into thinking that the word “luster” is related to “lust.” The two words come from very different bases. “Luster” is related to the same Latin root from which we get the word “illustrate.” The root means to illuminate. (An illustration “illuminates” a topic by making it visible to the eye.) The best meaning for “luster” is therefore “glow.” Something with a luster has a sheen or brightness that glows.

The word deluge comes from the Latin for “to wash away.” The “-luge” portion means “wash” and is found in words like “dilute” and “ablution” (the washing of oneself). Often, one finds the word used in literary sources referring to “the Deluge,” referring to the Biblical story of Noah’s ark and the flood. At times, the word “antediluvian” is used to insult something by implying that something is “older than Noah’s flood.” Note that the word “deluge” can be used to indicate not only a flood of water but also any great amount happening at one time.

The word “current” comes from the Latin for “to run.” Although it can mean “concerning the present moment,” it can likewise mean “to flow,” as when someone talks about the flow of water or electrical current (the “flow of electrons”). This general meaning is the one that is most appropriate among the answer options.

The word “genre” is related to the Latin “genus,” a term that we still use in logic to mean “general kind.” For instance, when someone says “man is a rational animal,” the general class “animal” is the genus into which “man” is placed (so to speak). When we speak of “genres of music,” what we really mean are “classes” or “general types” of music. For instance, one might say, “The most popular genres of music are baroque organ and renaissance polyphony, not rock and ska.”

The word “gusto” is perhaps a bit informal; however, it is regularly used in speech and even somewhat formal writing. Often, you will see it expressed in some form similar to, “Since he greatly loved his work, John performed it with gusto, always ready to take on a new task.” In such contexts, the word means “enthusiasm,” “readiness,” or even “enjoyment.”   It is related to the Latin for “taste,” which can be found in “gustatory” as well as “digest.” If someone “has a taste” for something, he or she likely has a great love for it and does it with much enthusiasm.

The word “precinct” comes from the Latin for “to encircle.” A “cincture” is a type of belt, though the term is rarely used any more (except among Benedictine monks, who still call their belts “cinctures”). Since the borders of a given section of land can be said to “encircle” that area, that area is at times called a “precinct.” You will often hear talk of “precincts” during elections, signifying the areas in which votes are collected.

The word ingredient is not limited in usage to food. Actually, the “-gredient” in the word is related to the Latin word for step, found in words like “grade” and “gradual” in English. In a general sense, the word “ingredient” means “something stepping or, more appropriately, going into a larger whole.” Just as in chemistry the “elements” are (at least from a certain aspect) the smallest “building blocks” of larger compounds, likewise can “ingredients” be considered the elements of the things that they constitute.

Do not be tricked by the relationship between the words “nebula” and “nebulous.” The word “nebula” comes form the Latin for “mist.” These astronomical bodies appear like “mist” in the heavens because they are diffuse matter. When something is “nebulous” it is like mist in the sense that it is hazy or indistinct. When related to someone making an argument, it means that the argument is vague and not direct.

The word “veridical” is related to “verify,” which means “to confirm the truth of something.” The “ver-” root is taken from the Latin for “truth.” The second half of the word “veridical” comes from the word for “to say or speak.” It can be found in English words like “dictate” and “diction.” To be “veridical” is to speak the truth or to be truthful.