Where does “labful” come from?

labful (English) comes from English Lab, from English laboratory, from Medieval Latin laboratorium, from Latin labotatorius, from Latin laborator, from Latin laboratus, from Latin laboro, from Latin labor — fox.

Ancestry of “labful”, step by step

labful traces back through two separate lines of ancestry.

via English Lab

StepLanguageWordMeaning
1EnglishLabDiminutive of Labrador
2EnglishlaboratoryA room, building or institution equipped for...
3Medieval Latinlaboratoriumlaboratory
4Latinlabotatoriuslaborable
5Latinlaboratorplowman, tiller of the soil
6Latinlaboratusproduced, having been produced
7LatinlaboroI toil, labor; I endeavor, strive; I suffer, am...
8Latinlaborwork; labour, toil; hardship, trouble, fatigue,...
9Old Latinlabos
10Romanianlabăpalm; paw
11Hungarianlábleg; foot; support, stand
12Proto-Uralicluwebone
13Proto-Iranian*Hrawpācáhfox
14Proto-Indo-Iranian*Hrawpāćásfox

via English ful

StepLanguageWordMeaning
1Englishful
Every word from Proto-Indo-Iranian *HrawpāćásEvery word from Proto-Iranian *HrawpācáhEvery word from Proto-Uralic luwe