I. ˌin-tər-ˈläk
Date: 1632
intransitive verb
: to become locked together or interconnected
transitive verb
1. : to lock together : unite
2. : to connect so that the motion or operation of any part is constrained by another
II. ˈin-tər-ˌläk noun
Date: 1874
1. : the quality, state, sense, or an instance of being interlocked
2. : an arrangement in which the operation of one part or mechanism automatically brings about or prevents the operation of another
a safety interlock
3.
a. : a stretchable fabric made on a circular knitting machine and consisting of two ribbed fabrics joined by interlocking
b. : a garment made of interlock