繋げる
つなげる · tsunageru · JLPT N3 · noun
to connect
🔗🧵 tsuna = rope (綱): to tsunageru is to tie things together with rope
つなげる comes from つな, the old word for rope or cord (綱). Linking things with a rope is the root idea. The kanji 繋 also has 糸 (thread) at the bottom, so both the sound and the character point to binding with string.