†1.your sundriness: (as a form of address to a group of people) all of you, one and all. Cf. all and sundry at alladj., pron., n., adv., and conj. Phrases 5b. Obsolete.
ΚΠ
1439 in W. Fraser Douglas Bk. (1885) III. 67 Till al and sindry to quhais knavlach thir present letteris sal to cum, Alexander of Ogilby of Innerquharady, gretyng in god aylestand: I mak knauyn to yhour sindrynes that [etc.].