Where does “thumbnailer” come from?

thumbnailer (English) comes from English thumbnail, from English thumb, from Middle English þombe, from Old English þūma, from Proto-West Germanic þūmō, from Proto-Germanic þūmô, from Proto-Indo-European tūm-, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

thumbnailer (English): A program that generates thumbnail images

Definitions

  1. A program that generates thumbnail images

Ancestry of “thumbnailer”, step by step

thumbnailer traces back through two separate lines of ancestry.

via English thumbnail

StepLanguageWordMeaning
1EnglishthumbnailThe fingernail on the thumb; A rough sketch; A...
2EnglishthumbThe short thick digit of the hand that for humans...
3Middle Englishþombethumb; thumb-length; big toe
4Old Englishþūmathumb
5Proto-West Germanicþūmōthumb
6Proto-Germanicþūmôthumb
7Proto-Indo-Europeantūm-to grow; to swell, to increase; to swell, be...
8Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via English ER

StepLanguageWordMeaning
1EnglishERThe statistic "Earned Run"; Initialism of...
2Turkisherearly; brave; man, male
3Ottoman Turkishایرsaddle, a seat for a rider placed on the back of a horse or other animal
4Old Anatolian Turkishایرearly, at a time in advance of the usual or expected event
5Proto-Turkicēdersaddle
Every word from Proto-Indo-European tewh₂-Every word from Proto-Indo-European tūm-Every word from Proto-Germanic þūmô