enhebrar
thread
en-
in, into (prefix)
+
hebra
thread
+
-ar
verb suffix
Enhebrar means to thread and can be broken down into en-0 (in, into0) + hebra1 (thread1) + -ar2 (verb suffix2), literally meaning 'to put into thread'.
verb
  1. thread
    To thread a needle or string something through a small opening
    Necesito enhebrar la aguja para coser el botón. // I need to thread the needle to sew on the button.