When was the first use of the word Entanglement?

Question

Schrödinger wrote a letter to Einstein after the 1935 EPR paper, and in that letter Schrödinger used the German word "Verschränkung" which translates into "entanglement", but when was the word first used in English?

Schrödinger's 1935 paper written in English, called Discussion of Probability Relations between Separated Systems, says (according to Wikipedia) "I would not call [entanglement] one but rather the characteristic trait of quantum mechanics, the one that enforces its entire departure from classical lines of thought" which means the concept was there but it whatever word he used for it was not entanglement (hence the square brackets). Unfortunately I do not have access to the full paper.

Answer 1

I managed to get access to the paper mentioned in the question. Schrödinger in 1935 (the same year the original EPR paper was published) wrote in English: "By the interaction the two representatives (or $\psi$-functions) have become entangled." This was in the abstract.

He also wrote later in the paper: "What constitutes the entanglement is that $\psi$ is not a product of a function of x and a function of y."

He also used the term "disentanglement"

However the use of the term as found by searching: quantum entanglement
in Google Scholar indicates that the term was merely doubling every 10 years until roughly 1990 when it went up by a factor of 5 in a 10-year period, followed by further factor of 6 in the next 10-year period:

Data was collected just now:

1900-1940: 63 results
1900-1950: 93 results
1900-1960: 146 results
1900-1970: 313 results
1900-1980: 718 results
1900-1990: 1700 results
1900-2000: 9380 results
1900-2010: 61700 results
1900-2020: 151000 results

Answer 2

According to Matthias Christandl (who did some research on this to resolve a bet with Artur Ekert), while the term "entanglement" was first used in 1935, as already relayed in other answers, the concept was discussed by Schrodinger in 1932. This set of slides (slides 3-8 in particular) from a talk reproduce part of a document that details this. The full image is also on the front of his thesis.

Answer 3

This is a soft answer, offered b/c I'm interested in the etymologies of terms we use in math and science. For what it's worth:

entanglement (n.) 1630s, "that which entangles," from entangle + -ment. From 1680s as "act of entangling." Foreign entanglements does not appear as such in Washington's Farewell Address (1796), though he warns against them. The phrase is found in William Coxe's 1798 memoirs of Sir Robert Walpole.
_{SOURCE: Online Etymological Dictionary}

from:

tangle (n.) 1610s, "a tangled condition, a snarl of threads," from tangle (v.).
_{SOURCE: Online Etymological Dictionary}

I make this connection because the idea of determinacy and strings/threads goes back to at least the ancient Greek Moirai (the Fates).