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base

/beɪs/

foundation, starting point, or low-ranking quality

From Greek basis (step) + Late Latin bassus (low).

noun
verb
adjective
basis
Ancient Greek
Verified
básis (βάσις)
A step, act of stepping, or something on which one stands

from Old French bas "depth" (12c.)

+1 more source
Latin
Verified
basis
Foundation or supporting structure

from Old French bas "depth" (12c.)

+1 more source
Old French
Verified
bas
Depth or bottom

from Old French bas "depth" (12c.)

+1 more source
Middle English
Verified
base
Foundation or pedestal, attested c. 1300

from Old French bas "depth" (12c.)

+1 more source
bassus
Late Latin
Verified
bassus
Low or short

from Old French bas "depth" (12c.)

+1 more source
Old French
Verified
bas
Low in position or rank

from Old French bas "depth" (12c.)

+1 more source
Middle English
Verified
bas, baas
Low; later spelled base

from Old French bas "depth" (12c.)

+1 more source
Modern English
Verified
base
Low, inferior, or morally dishonorable

from Old French bas "depth" (12c.)

+1 more source
Modern English
base

A base began as something remarkably physical: the place where your foot lands. Ancient Greek básis meant a step, and then the thing you stand on—a pedestal, a foundation, solid ground under human ambition. French carried one branch into English around 1300, while another bas, from Late Latin bassus, supplied the sense “low,” giving English a pair of identical-looking words with different family histories. That is why a building’s base, a military base, and first base all feel sturdily connected, while base metal and base motives suggest something low or inferior. In 1754, French chemist Guillaume-François Rouelle added the chemical sense for a substance that joins with an acid to form a salt; centuries later, baseball turned the old idea of a starting place into a diamond-shaped set of destinations. Whenever you say “back to base,” you are returning—linguistically, at least—to the place where your feet first touched the ground.

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