A historical plant, possibly a variant or misidentification of garlic or another allium species, used in folk medicine.
Possibly 'alli-' (garlic-related) + 'cholly,' though the second element's origin is uncertain. May be a folk corruption or regional dialect term for a garlic-based remedy.
'Allicholly' is so obscure it appears only in centuries-old herbals and survives mainly in historical dictionaries—it's a word that died from disuse rather than being replaced.
Complete word intelligence in one call. Free tier — 50 lookups/day.