Arm
/ɑːrm/noun
The upper limb of the human body from the shoulder to the hand, or a weapon.
Did you know?English arm descends from a Proto-Indo-European root meaning “to fit together” or “join,” which also lies behind words for joints and the way bodies were imagined as connected parts.
Etymological Timeline
Proto-Indo-European
PIE
*ar-
“to fit together, join”
Latin
Latin
armus
“upper arm, shoulder”
Old French
OF
arme
“weapon”
Old English
OE
earm
“arm, upper limb”
Modern English
English
arm
“the upper limb; a weapon or branch”
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