
Sunder
Literary Use
The word 'sunder' is often found in literary texts, like novels or poetry, rather than everyday conversation. 
Emotional Impact
'Sunder' can imply a forceful or violent separation, carrying more emotional weight than 'split' or 'divide'. 
Archaic Tone
Using 'sunder' might give your language an old-fashioned or formal tone, as it's less common in modern speech. 