fix- +

(Latin: fasten; to attach; from fixus, past participle of figere)

postfix
To add a letter or group of letters to the end of a word; a suffix.
prefix
1. To put or attach something before or in front of.
2. To settle or to arrange in advance.
3. In grammar and vocabulary: to add as a prefix or to add a prefix to a word.
4. An affix, such as dis- in disbelieve, attached to the front of a word to produce a derivative word or an inflected form.
5. A title placed in front of a person's name.
refix
To fix again or to renew the establishment of something.
suffix (s), suffixes (pl)
1. A letter, or group of letters, added to the end of a word or word part to form another word; for example, -ly in "quickly", -ing in "talking", -ness in "gentleness", -ing in "walking", or -s in "sits".
2. Suffixes are groups of letters placed at the end of words to modify their meanings or to change them into different word groups; for example, from adjectives to adverbs, etc.
3. Something added to the end of something else.
suffixation
The formation of a word by means of a suffix.
suffixes, suffixing, suffixed (verb forms)
1. Adding a letter, or letters, added to the end of a word to form another word; such as, -s and -ness as shown in "dogs" and "softness".
2. Adding a letter or letters to the end of a word to form another word with a slightly different spelling.
3. Adding or attaching to the end of something.
suffixion
Something added to the end of something else.
transfix
1. To pierce with or as if with a pointed weapon or other sharp object.
2. To render motionless, as with terror, amazement, or awe.
3. To shock or terrify somebody so much as to induce a momentary inability to move.
4. To cut through a part of the body completely; such as, when amputating a bodily limb.
transfixion
1. To make or to hold motionless with amazement, awe, terror, etc.
2. To fascinate, to spellbind, to engross, to captivate, to enthrall.
unaffixed
Not affixed.
unfix
1. To loosen or to detach something.
2. To upset the certainty or stability of something.
3. To render no longer fixed; to unfasten; to detach; to loosen; to free.
2. To unsettle, as the mind, traditions, or habits.
unfixed
1. Unsettled; loosened.
2. Wandering; erratic; inconstant; having no settled habitation.
3. Having no settled view or object of pursuit.
4. To cause to leave a tranquil condition; to disturb.
vaginofixation
Suture (to fix by sewing tissue together) of a relaxed and prolapsed vagina to a surrounding structure; such as, the abdominal wall.

Related word families intertwined with "to place, placing, to put; to add; to stay; to attach" word units: pon-; prosth-; stato-; the-, thes-.