allelo-, allel-

(Greek: one another, of one another; literally, "the other"; reciprocally; in mutual relation)

morphallaxis (s) (noun), morphallaxes (pl)
The growth of lost tissue or destroyed parts: Morphallaxis is the regeneration of certain tissue due to death or decease of the existing tissue.
parallel (adjective) (not comparable)
1. In geometry, relating to or being lines, planes, or curved surfaces that are always the same distance apart and therefore never meet: The notebook that Susan bought had parallel or horizontal lines which helped her do her homework.

Parallel means literally "beside each other".
2. Relating to two things that are comparable because they are similar and share many characteristics: The two parallel events were both concerts and took place at the same time of day.

parallel (s) (noun), parallels (pl)
Something or someone that possesses the property of being analogous to another thing or person: Shirley was certainly a parallel to her sister who looked exactly like her because she had the same eye and hair color, stature, and personality.
parallelepiped (s) (noun), parallelepipeds (pl)
A polyhedron consisting of six faces that are parallelograms: A parallelepiped can be a solid figure. like a cuboid, that has six sides that are a quadrilateral whose opposite sides are both parallel and equal in length
parallelism (s) (noun), parallelisms (pl)
1. In writing, the deliberate repetition of particular words or sentence structures for effect: For rhetorical effect, John used repetitions of syntactic structures in consecutive sentences.
2. In philosophy, the philosophical theory that mind and body do not interact: Parallelism relates to following separate parallel tracks, without any relationship of cause and effect existing between the two.
parallelize (verb), parallelizes; parallelized; parallelizing
To make or place parallel to: The doctors parallized the indications of the illnesses of the various patients and decided that the symptoms were those of the dangerous virus.
parallelogram (s) (noun), parallelograms (pl)
A four-sided plane figure in which both pairs of opposite sides are parallel and of equal length, and the opposite angles are equal: A square is a parallelogram, even when it is tilted to one side, and as long as the sides are parallel to each other and are of the same lengths.

Inter-related cross references, directly or indirectly, involving word units meaning "another, other, different, alternating, varied, changing": ali-; allo-; alter-; hetero-; mut-; poikilo-; reciproc-; vari-.