grad-, -grade, -gred, -gree, -gress

(Latin: walk, step, take steps, move around; walking or stepping)

plantigrade (adjective), more plantigrade, most plantigrade
1. Walking on the whole base or bottoms of the feet: Bears, raccoons, rabbits, and even human beings are examples of plantigrade animals.
2. When walking, using the lower surfaces of each foot on the ground including the heel: Humans are probably the most identifiable plantigrade creatures that people know.
postgraduate (pohst" GRAJ yoo wit)
A student taking a course of study after graduation.
progress, progresses, progressed, progressing (verb forms)
1. A moving forward or onward in time: "It became warmer as the day progressed."
2. To advance toward perfection or to a higher or better condition or situation: "The renovation of the kitchen has progressed very well and we are completely satisfied with the results."
3. To bring something closer to completion: "The work is progressing and it should be done today."

"We need to continue to progress back to our hotel before it gets too late."

progression (pruh GRESH uhn, proh GRESH uhn) (s) (noun), progressions (pl)
1. The process of developing over a period of time: Harry's parents were pleased with his progression of extraordinary musical talent.
2. A continuous and connected series of actions, events, etc.: The progression of painting the house has been going on for days, but Jack and Jill are almost finished now.
progressive (adjective)
1. Moving forward, onward, or gradually advancing: "Their new marketing techniques have resulted in a progressive increase in sales."
2. Favoring and promoting progress: "We are hoping that our son will do better in this progressive school."
3. Something that is happening, increasing, or growing: "They have made some progressive decisions which should bring them closer to success."
4. In grammar, of or relating to the progressive tenses of verbs: "Examples of present-tense progressive verbs: I am going; You (s) are going; He, She, It is going; We are going; You (pl) are going; and They are going.

Past-tense progressive verbs: I was going, You (s) were going; They were going; We were going; You (pl) were going; and They were going.

These examples and all of the other progressive-verb tenses end with -ing; including: I will be going; I have been going; I had been going; and I will have been going.

progressive pigmentary dermatosis
A chronic skin disorder resulting from hemorrhages into the skin, chiefly on the legs of young men, and characterized by purple patches that spread and turn brown.
progressive vaccinia, vaccinia gangrenosa (pl) (nouns)
A rare but often fatal complication of smallpox vaccination in those with deficient immune mechanisms or receiving immunosuppressive therapy, characterized by tissue necrosis that spreads from the inoculation site, which may result in metastatic vaccinial lesions in the skin, bones, and viscera.
progressively (adverb)
Happening or developing over a period of time: "The disease grew progressively worse during the last days."

"He was progressively developing new skills in his profession."

In animals, walking on the hands and feet or resting with the body in a horizontal position.
rectigrade (adjective), more rectigrade, most rectigrade
A reference to the movement forward in a straight line or course: Rectigrade motion can be seen in larvae having 16 legs which progress with a straight body as opposed to the geometrid moth larvae which show looping motions when they advance.
regression (ri GRESH uhn) (s) (noun), regression (pl)
The process by which an individual changes his or her behavior, thoughts, or language from a previous state of development to something not as mature: Due to the frightening trauma experienced by Leslie as a teen and subsequent regressions while she was talking, her verbal expressions made her sound much younger and frail.