subingression

== English == === Etymology === From sub- +‎ ingression. === Noun === subingression (uncountable) (obsolete) The act of ingressing or entering subtly or unobservedly. [17th c.] === Further reading === James A. H. Murray et al., editors (1884–1928), “Subingression”, in A New English Dictionary on Historical Principles (Oxford English Dictionary), volume IX, Part 2 (Su–Th), London: Clarendon Press, →OCLC, page 20, column 1.