noun
dowel; joggle
A wooden pin or peg used in joinery to align or strengthen joints.
この家具はダボで組み立てられている。
This furniture is assembled with dowels.
ダボ穴に接着剤を入れてから差し込んでください。
Please apply glue into the dowel hole before inserting it.
ほぞ is a tenon, a projecting piece of wood that fits into a mortise, while ダボ is a separate cylindrical pin used to align or reinforce joints.
The exact derivation is uncertain; the word is conventionally written in katakana and may be a loanword or a mimetic coinage.