Mother Carmel

Etymology

マザー・カルメル (Mazā Karumeru). A nun-name built on the Carmelite order plus a buried candy pun:

• “Carmel” (カルメル Karumeru) — references the Carmelites, a Catholic religious order known in Japan for selling sweets; this matches her nun’s habit and her “Mother” / “Holy Mother” title, and dovetails with the Charlotte / Big Mom confectionery theme. The “Mother” framing also evokes “Our Lady of Mount Carmel” (Virgin of Carmel), a Marian title.
• Pun layer — “caramel.” Her romanized name カルメル Karumeru also reads as caramel (a sweet); caramel tops the croquembouche dessert served at Linlin’s first birthday party at the orphanage — so the woman at the root of Big Mom’s sweets-obsessed world is herself named after a candy.
• Codename layer — “Mountain Witch” / “Mountain Hag” (山姥 Yamanba), revealed Ch. 867 (pp. 11-12). Her Underworld alias is the yamauba (山姥) of Japanese folklore — a mountain-dwelling crone who shows herself as a kindly old woman but lures and devours travelers and children. The kanji split is literal: 山 yama “mountain” + 姥 uba “old woman / hag.” The folklore figure is the exact inversion of her “Holy Mother” front — a child-eater wearing a benevolent face — which fits the chapter’s reveal that the saintly “Mother” was a child-trafficker, and seeds the withheld horror of what became of the House of Lambs orphans. See Carmel’s Mountain Witch Codename Encodes The Child-Devouring Yamauba.

Arc-by-arc updates

Whole Cake Island — the Elbaf rampage’s aftermath; the trafficker reveal; the vanishing (Ch. 867)

• The young Charlotte Linlin’s hunger-rampage at the giants’ solstice festival mortally wounds the giant hero Jorul (Carmel’s 300-year battle companion); the chiefs demand her execution (“Chief Beardhill! You must kill Linlin!!”, p. 9), but Carmel shields her and renounces Elbaf, leaving with all the orphans and relocating the House of Lambs off the island.
• Carmel’s true nature exposed: the saintly “Holy Mother” is the orphan-trafficker “Mountain Hag” — 50 years “in the kid-selling business” — running the orphanage as a pious front and selling the liveliest orphans to the World Government as disposable, no-family-history spies (pitched as future Cipher Pol / admiral / Fleet Admiral material, and “the greatest shield the Celestial Dragons could ever want”, pp. 11-12). ~37 years prior she produced the Navy’s first giant recruit, John Giant. She calls Linlin her “finest product.”
• Linlin’s joyous 6th-birthday semla-croquembouche tea party — origin of her tea-party motif and lifelong semla craving — is immediately followed by Carmel and every orphan “simply vanishing” (the bewildered child searches the empty House of Lambs; the chapter cuts to the present-day Big Mom screaming “MOTHERRR?!!!”).
• Carmel visibly wields a soul/voice-giving power — “I shall give you a voice. Now heed my command!!” — gives the festival fire a face, names the sun-homie “Pandora,” and credits “the Sun God” (pp. 5-7) — seeding the origin of her Soru Soru no Mi and the homie power. See Carmel’s Soul-Bestowing Power and the Sun-God Miracle, Sun God Identity and the Divine Pattern.

Whole Cake Island — first shown as a person: the Elbaf flashback (Ch. 866)

• First depicted as a person (not the portrait prop) in Big Mom’s origin flashback, captioned “MOTHER CARMEL (AGE 80) & THE HOUSE OF LAMBS CHILDREN” (p. 6).
• Formerly Sister Carmel, a wandering holy woman who decades earlier halted the Navy’s execution of the captured surviving Giant Pirates — “Heaven seeks a peaceful understanding!!!” (pp. 4-5) — then settled on Elbaf and founded the orphanage House of Lambs, taking in castoff children “regardless of their status or race.” A diplomatic bridge between humanity and giants; the giant heroes Jorul and Jarul support her house.
• At age 80 she takes in the abandoned 5-year-old Charlotte Linlin and is the first person to understand her — forgiving every act of monstrous, ignorant violence (the caged bear/wolf; the near-mutilation of her Fish-Man and Longarm-Tribe playmates, pp. 8-9). Her stated dream — “a brighter world… where all peoples join hands and laugh together” — seeds Big Mom’s own (p. 5).

Whole Cake Island — the grief-fit; “why did you just up and vanish?” (Ch. 865) — portrait/silhouette only; person not shown

• The allied forces re-smash her portrait to keep Big Mom destabilized; when it registers, Linlin collapses into a deafening grief-scream (“MOTHER!!”, pp. 9-13) — confirming the portrait is the Emperor’s single deepest emotional anchor.
• Big Mom closes pleading at the portrait — “Hey, Mother… Nobody will hear me out… Why did you just up and vanish? Where did you go?” (p. 17) — cueing the flashback into Carmel’s past, which opens at Elbaf, sixty-three years ago, in the New World.
• A tall hooded silhouette appears with the flashback teaser; her face/person is not clearly depicted this chapter (the depiction-as-a-person lands @0866). See Mother Carmel Mystery, Carmel Portrait.

Whole Cake Island — the portrait enshrined; Big Mom’s rage (Ch. 861) — portrait only; person not shown

• Her portrait is enshrined at the tea-party entrance and revered by the Charlotte children as “the light of the world” (pp. 4-5). Only the portrait (a prop) is shown — her face is not depicted.
• Big Mom flies into a violent rage when a guest asks who Carmel is — “Don’t you dare pry into my precious memories!!!” — positioning the portrait as both a sacred relic and a rage-trigger. See Mother Carmel Mystery, Carmel Portrait.

Notes

Only the on-page facts (named via Bege; the portrait is Big Mom’s weakness; she vanished; the debt) are recorded.

• Etymology flag : “Carmel” — likely Mount Carmel / “Caramel” sweets-pun (Big Mom Pirates food theme).