from The Century Dictionary.
- noun A trade term, usually applied to common ink made with nut-galls and a ferrous instead of a ferric salt of iron, the result being a solution nearly free from suspended solid particles, which flows freely from the pen, but produces writing which is pale at first and only gradually acquires its full depth of blackness by exposure to the air as oxygen is absorbed and ferric tannate formed.
Sorry, no etymologies found.
If I were a stationer and kept a circulating library, I think I should try to turn an honest penny by selling sand to my customers along with their packets of linen-wove and blue-black writing-fluid.
This is the early rite, and it seems probable that when the written contract came into vogue the blood was found to be a convenient writing-fluid, or was offered to the Devil in the form of a signature.
It is black polished stone, beautifully fashioned and encircled with gold bands, and contains the writing-fluid within itself.
"It so often comes over me," says Moira -- which happens to be my wife's name -- "that Dick, all by himself, is really Harrowby & Sons, Inc." -- she spoke as if I were some sort of writing-fluid -- "and has his products on sale all over the world.
"All is in readiness, my lord!" he announced in his disagreeable croaking tones, -- "Here are the clean and harmless slips of river - reed waiting to be soiled and spotted with my lord's indelible thoughts, -- here also are the innocent quills of the white heron, as yet unstained by colored writing-fluid whether black, red, gold, silver, or purple!