Sihuanaba

Accounts vary. Scholarly summaries posit the motif as a transplanted/adapted legend with parallels to Spanish washerwoman/river specter tales introduced during the colonial period; within local tellings, specific origin narratives exist (for example, El Salvadoran variants narrate a woman cursed for infidelity and neglect of her child and transformed into the damned Siguanaba). Multiple etymological proposals are reported: Nahuatl macihuatli (cihuatl 'woman' + matlatl 'net'), regional forms from Nahuatl cihuatl ('woman') yielding cigua/cegua, and folk proposals linking the name to Kʼicheʼ siwan ('cliff' or 'deep ravine') or to Guatemalan dialect meanings; these derivations are contested in the sources and presented as competing scholarly and folk explanations.

In most accounts she first appears as a strikingly beautiful, long‑haired woman—sometimes nude or wearing thin white or black garments—frequently encountered washing clothes or bathing at rivers or watercourses; she commonly keeps her face hidden when first seen. Regional variants report different disclosed forms when her true nature is revealed: descriptions include a fleshless skull or human skull, a horse's head, or other 'horrible abomination.' These disguise/reveal elements are consistent across the named regional variants reported in the sources.

Behavioral rather than overtly magical in most descriptions: she adopts an attractive female guise to entice solitary travelers (especially men who are drunk or unfaithful) away from roads and into isolated or dangerous places. In some tellings she impersonates a child's mother or trusted woman to lead children into the wilderness; physical contact or the sudden revelation of her true face is said in some accounts to induce extreme shock that may result in panic, madness, or death, and victims are often left lost, disoriented, or traumatized. The figure functions narratively as a punitive or cautionary presence tied to moral enforcement in local storytelling.