Enfilade

[en-fuh-leyd, -lahd, en-fuh-leyd, -lahd] /ˈɛn fəˌleɪd, -ˌlɑd, ˌɛn fəˈleɪd, -ˈlɑd/

noun
1.
Military.

2.
Architecture.

verb (used with object), enfiladed, enfilading.
3.
Military. to attack with an enfilade.
/ˌɛnfɪˈleɪd/
noun
1.
a position or formation subject to fire from a flank along the length of its front
verb (transitive)
2.
to subject (a position or formation) to fire from a flank
3.
to position (troops or guns) so as to be able to fire at a flank
n.

1706, from French enfilade, from Old French enfiler (13c.) “to thread (a needle) on a string, pierce from end to end,” from en- “put on” (see en- (1)) + fil “thread” (see file (v.)).

Used of rows of apartments and lines of trees before modern military sense came to predominate. As a verb from 1706. Related: Enfiladed; enfilading.