The story
Former brand name, from a company called Iron Jelloid Co. Ltd. Presumably jelly + -oid.
Etymology from Wiktionary, CC BY-SA 4.0.
jelloid
Today it means: A medicated gelatin tablet or lozenge; a gelatinous pill. Full definition →
Today it means: A medicated gelatin tablet or lozenge; a gelatinous pill. Full definition →
Former brand name, from a company called Iron Jelloid Co. Ltd. Presumably jelly + -oid.
Etymology from Wiktionary, CC BY-SA 4.0.