Principal English Translation:
because of; through; on behalf of (see Karttunen and Lockhart)
Frances Karttunen:
-PAMPA compound postposition for, for the sake of, through, because of / por, por amor, a causa de (S) See -PAN, -PA.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 186.
Lockhart’s Nahuatl as Written:
relational word. on account of, because of, on behalf of, concerning, for. -pan, -pa.
James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 229.
Attestations from sources in English:
nopampa = because of me; on my behalf
ipampa = because of (anyone or thing)
ipampa = for this reason