uncleship

From uncle +‎ -ship.

uncleship (countable and uncountable, plural uncleships)

1. The state of being an uncle; uncledom
   • 1823, Elia [pseudonym; Charles Lamb], Elia. Essays which have Appeared under that Signature in The London Magazine, London: […] [Thomas Davison] for Taylor and Hessey, […], →OCLC:

     Being without a family, I am flattered with these temporary adoptions into a friend's family; I feel a sort of cousinhood, or uncleship, for the season

“uncleship”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• siphuncle, sulphenic