subingressionn.
/(ˌ)sʌbɪnˈɡrɛʃn/, /(ˌ)sʌbɪŋˈɡrɛʃn/, U.S. /ˌsəbᵻnˈɡrɛʃ(ə)n/, /ˌsəbɪŋˈɡrɛʃ(ə)n/ rare after the 17th cent.
Subtle or unobserved entrance. Also: an instance of this; (in later use concrete) a secret or hidden entrance.In early use in scientific contexts.
ΘΚΠ
the world > movement > motion in a certain direction > going or coming in > [noun] > surreptitiously
irreption1598
insinuation1608
subingression1654
1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana i. v. 43 Neither of which were possible, if the subingression of Cold and Hot Atoms through the Glass were excluded.
1674 R. Boyle Observ. Saltness of Sea 8 in Tracts (new ed.) That in the drawing up of the Vessel through the Salt water..the taste may have been alter'd by the subingression of Salt water.
a1706 J. Evelyn Elysium Britannicum (2001) i. iii. 40 Allways understanding a subingression of the grosser particles into the various and spongy contexture of the Tongue in these effects.
1812 T. Taylor Aristotle's Metaphysics xiii. v. 408 All the causes..which subsist in intellect are the true exemplars of things posterior, and receive in themselves no subingression of image.
1832 Metropolitan Mar. 244 O! I trust before long there will be a sub-ingression of different feelings into their hardened hearts.
1846 Picturesque Handbk. to Carlingford Bay 79 The outer entrance led into a hypogeum, in a dark corner of which was a sub-ingression that led to the ascent.
1955 Corsicana (Texas) Daily Sun 26 Jan. 8/5 A subingression is a secret door in a wall.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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n.1654