atrament

noun

at·​ra·​ment

ˈa‧trəmənt

plural -s

1

obsolete : ink

writing with atrament

2

: a very dark substance

—usually used of liquids

a puff of atrament emitted by the octopus

Word History

Etymology

Middle English, from Latin atramentum, from (assumed) Latin atrare to make black (from Latin atr-, ater black) + Latin -mentum -ment

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