'bunch-flowering' originates from modern English compounding of the words 'bunch' and 'flower', where 'bunch' meant 'a cluster or bundle' and 'flower' meant 'to produce blossoms'.

'bunch' developed in Early Modern English (recorded from the late 16th century) as 'bunche'/'bunch' meaning 'bundle' or 'cluster'. 'flower' entered English via Old French 'flor' (from Latin 'flos, floris') and became Middle/Modern English 'flower'. These elements were later combined in Modern English to form descriptive compounds like 'bunch-flowering'.

Individually, the roots meant 'cluster' and 'blossom'; combined, they evolved to describe the trait 'producing flowers in clusters' used in botanical descriptions.