Dictionary Definition:
apa-√han (Subj. 3. sg. -han
• Imper. 2. sg. -jahí, 2. du. -hatam
• 2. pl. -hatā́, or -hata
• perf. -jaghā́na
• pr. p. -ghnát
• Intens. p. nom. m. -jáṅghanat) to beat off, ward off, repel, destroy RV. &c