inknot
/ɪŋkɒt/Definitions
1. noun
A knot of ink, especially one that forms when a pen is not used for a time.
“After not writing for months, the inknot in her pen had hardened and was difficult to clean out.”
2. verb
To form a knot of ink, especially in a pen.
“If you don’t use your pen for a while, the ink will inknot and become difficult to write with.”