ulnar
Meaning
Relating to or affecting the ulna or the region of the forearm on the same side as this bone.
Structure
Usage
He suffered an ulnar nerve injury, causing numbness in his fingers.
The ulnar artery runs along the inner side of the forearm.
Pain on the ulnar side of the wrist is common in certain sports.
Etymology
The word 'ulnar' is a modern anatomical adjective derived directly from the noun 'ulna'. The noun 'ulna' itself has a long history, originating from Latin where it meant 'elbow' or 'forearm'. This Latin term is believed to be related to the Greek 'ōlenē', also meaning 'elbow', suggesting a shared ancestral concept in Indo-European languages for this joint. The suffix '-ar', a variant of '-al', was attached to 'uln-' to form an adjective meaning 'pertaining to the ulna', following a standard pattern in scientific and medical terminology for specifying anatomical relations.
Analysis
'uln' is a substring of 'ulna', from Latin 'ulna' (elbow, arm). 'ar' is an adjective-forming suffix of Latin origin, meaning 'pertaining to' or 'of the kind of'.