នំបុ័ង • (num paŋ)
នំបុ័ង alone is the generic word for bread. នំបុ័ងវែង ("long bread") means French-style baguette specifically.
From Khmer នំ (num, “cake”) + transcription of French pain (“bread”). Compare Thai ขนมปัง (kà-nǒm bpang).