olemus
ISO 13584:
iga tipp, milleni võib antud tipust jõuda tagasisiirdumisega ematipule, selle ematipule jne
= any node that can be reached from a given node, by successive traversals of links in the reverse direction. For a given node, its ancestor nodes include all parent nodes, all parent nodes of these parent nodes, etc.
https://duckduckgo.com/?t=h_&q=%22ancestor+node%22&iax=images&ia=images

vt ka
- eellane (1)