What is "boometh"

Usage examples of "boometh".

There is an old heavy, heavy, booming-clock: it boometh by night up to thy cave:- -When thou hearest this clock strike the hours at midnight, then thinkest thou between one and twelve thereon-Thou thinkest thereon, O Zarathustra, I know it of soon leaving me!

There approacheth, there approacheth, the hour,- -There boometh the clock-bell, there thrilleth still the heart, there burroweth still the wood-worm, the heart-worm.