(adjective): capable of flowing, a smooth style, liquid

flu (flow) + id (adj. like a body)

The ink my new pen is quite fluid and flows evenly across the page.

(verb): to shift back and forth, to move erratically

fluctu (flow) + ate (verb. cause to be)

My body temperature has been fluctuating all day. Sometimes I'm hot, and sometimes I'm cold.

(noun): arrangement of something

form (shape) + at

The format of this class will be half lecture and half class participation.

(verb): to prepare from a set of steps (formula), to devise

form (shape) + ul (condition) + ate (verb. cause to be)

The chemist formulated a new way of making dish detergent.

(verb, noun): to break, to crack; a broken bone

fract (to break) + ure (noun. Condition verb. to act) 

Miguel fractured arm his while skiing.

(noun): a piece broken off, a part of something

frag (to break) + ment (noun. state of)

It bothers me that I can remember only a fragment of the poem rather than the whole piece.

(adjective): easily broken, not strong

frail (break)

Be careful! That chair is frail.

(adverb): in a general manner, usually, with regard to the whole not specifics

gen (kind) + er + al (quality) + ly (adv. in the manner of)

Generally, Lance leaves work at 5:00 p.m.

(adverb, adjective): careful

gin (to  give birth)+ ger (adj. comparative) + ly (adv. In the manner of)

Paulette picked up the antique vase gingerly and placed it on the shelf.

(adjective): native, having been born in a specific area or environment

in (into) + di (two) + gen (to give birth) + ous (adj. relating to)

The tomato plant is indigenous to South America.

(noun): a science that describes the earth's surface

geo (earth) + graph (draw) + y (noun. result of an activity)

The geography of New York varies from the sandy shores to rocky mountains.

(verb): to place things in classes or sets, to classify

cate (with) + gor (to gather)+ ize

(verb. cause)

The professor asked her students to categorize the plants they found.