vibri

You have already sung this word. It is in the last verse of La Tagiĝo, Grabowski's 1913 marching song and the movement's second anthem:

Jam vibras por nia saluto reson'

An echo already vibrates in answer to our greeting. That line is doing a great deal with one verb. A resono is a sound coming back at you, and what the song claims is that the greeting sent out from one small movement is already being answered from every part of the world - not heard, not agreed with, but physically ringing in the hearts of a hundred thousand people. Vibri is the right verb for it because vibration is what a struck thing does whether or not anyone meant to strike it.

It is intransitive, and that governs everything else. A thing vibras; you cannot vibri a thing. To make something vibrate is vibrigi, with the causative -ig-, and the vibration itself is vibrado. This is the same transitivity pattern as tremi at 546, which is worth having beside it: tremi is what a person or an animal does out of cold or fear, vibri is what a physical object does at speed - a string, a bridge, a window in a gale, a voice on the edge of breaking.

A modern use the 1913 corpus could not have. A phone vibras, and vibra alarmo is the vibrate setting. The word slid into that meaning without any fuss, which is what a Latin root inside a regular system is for.