Etymograph

English

spoolup

From spool + up.

A compound of spool + up

Proto-Indo-European *(s)pel- ‘to cleave, split’

…

Old Dutch *spōla

Middle Dutch spoele

Old Northern French spole

Middle English spole ‘a bobbin or spool (for weaving)’

English spool

Proto-Germanic *upp ‘up’

Proto-West Germanic *upp

Old English upp

Middle English up ‘to a vertical axis’

English up

Today it means

noun The process of increasing the rotational speed of a turbine engine, causing an increase in thrust.

Sources

Sources: Wiktionary, “spoolup”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / spoolup

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