Hierarchyand
Hierarchyand is not a standard term in academic or technical writing. It appears to be a concatenation of “hierarchy” with the conjunction “and,” rather than a distinct concept with an established definition. As a result, there is no widely accepted meaning or usage.
In practice, occurrences of hierarchyand are typically errors, typos, or the result of automated text processing
When people discuss hierarchical ideas, they usually separate “hierarchy” from other themes and specify the relationships
See also: Hierarchy; Organizational theory; Hierarchical data; Taxonomy; Network theory.