Where does “pentomino” come from?

pentomino (English) comes from English -omino, from English domino, from French domino, from Medieval Latin domino, from Latin Dominus, from Latin domus, from Proto-Italic domos, from Proto-Indo-European dṓm — to build; to arrange, to put together.

pentomino (English): A polyomino made up of five squares

Definitions

  1. A polyomino made up of five squares

Ancestry of “pentomino”, step by step

StepLanguageWordMeaning
1English-ominoA tile with a specified number of connected squares
2EnglishdominoA tile divided into two squares, each having 0 to...
3Frenchdominodominoes; a domino set; a domino tile
4Medieval Latindomino
5LatinDominusthe Lord; Lord; The Lord
6Latindomushouse, home; any building or abode; native place,...
7Proto-Italicdomoshouse, home
8Proto-Indo-Europeandṓmhome; house
9Proto-Indo-Europeandem-to build; to arrange, to put together
Every word from Proto-Indo-European dem-Every word from Proto-Indo-European dṓmEvery word from Proto-Italic domos