IPA: /ˈpʌt.lɒg/
KK: /ˈpʌtˌlɔg/
A short piece of wood used to support the floor of a scaffold.
The workers carefully placed the putlogs to ensure the scaffold was stable.
The word 'putlog' originates from Middle English 'putlogge', which is derived from the Old English 'put' (meaning to place) and 'log' (meaning a log or timber). A putlog refers to a horizontal beam or log placed in scaffolding to support the structure.
Think of 'putting' ('put') a 'log' ('log') in place to support something — that's what a putlog does.