Tiliann

The name Tiliann is quite rare and does not have a well-documented independent history. It appears to be a modern coinage or a variant of the name Tilian. Tilian itself is thought to be a diminutive or variant of names like Till or Tilman, which are Germanic in origin. Till is often a short form of Theodoric (meaning 'people's ruler') or other names beginning with 'Theud-' (people). The 'ann' suffix might be an attempt to feminize or simply a stylistic addition, though in this case, the user specified male gender.

Given its rarity, Tiliann likely emerged in recent decades, possibly as parents sought unique names or combined existing elements. It doesn't carry the historical weight or widespread usage of more traditional names, making its etymology somewhat speculative and tied to its probable root names.