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Webster 1913 Edition

Adj.

Being beyond the limit or bounds;

as,

extraliminary

land

Mitford.

Adj.

[extra and limit.] Being beyond the limit or bounds; as extralimitary land.

extralimitary ‎(comparative more extralimitary, superlative most extralimitary)

Beyond the limit or bounds.
(Can we find and add a quotation of Mitford to this entry?)