cecutiency
Partial blindness, or a tendency toward blindness.
dated, rare, uncountable
[T]here is in them [moles] no cecity, yet more then a cecutiency[…]
Where it comes from
From Latin caecūtīre (“to be blind”), from caecus (“blind”).
Adapted from the Wiktionary entry cecutiency (CC BY-SA 4.0).