treicu fu'ivla

x1 is a (general(ized)) heirarchical/pyramidal/directed tree-graph structure on underlying set x2 via partial ordering relation x3 (see notes for default properties).

x3 is, by default, such that the direction is from the common ancestor, root, or superior to each of its descendants, children nodes (ultimately: leaves), or inferiors. Combine with familial terms for generalized analogs of those terms (this word representing a generalized family tree); for example: "2 via relation/partial ordering x3; x1 is either (in a narrow sense) a direct subordinate of the direct boss/superior/manager of x2's direct boss/superior/manager, or is (in a broader sense) an equal-level co-worker of x2's direct boss/superior/manager (no matter the exact relation).">jibytreicyfamti" for "work-heirarchy aunt/uncle". See also: "grafu", "tseingu", "lanzu", ".utka"; like "grafnseljimca", but more focussed on the heirarchical structure/relations and less on the mathenatical network or its properties (also, this word is inherently directed).

In notes:

jibytreicyfamti
x1 is work-heirarchy "uncle/aunt" of x2 via relation/partial ordering x3; x1 is either (in a narrow sense) a direct subordinate of the direct boss/superior/manager of x2's direct boss/superior/manager, or is (in a broader sense) an equal-level co-worker of x2's direct boss/superior/manager (no matter the exact relation).
treicytunba
x1 is of the same rank/generation in hierarchical structure x2 by standard/partial ordering/relationships x3.
dzu'enba
x1 and x2 are mutual sibling nodes in a directed tree graph x6 such that their shared parent node(s) x5 is/are the most-recent common direct ancestor of x3 and x4, such that x1 is a direct ancestor of or simply is x3 (as the case may be), and such that x2 is a direct ancestor of or simply is x4 (as the case may be), all according to tree ordering relation x7.