precipitation
‘act of precipitating’
Lexical development traced from the Tamil root:
E. precypitacion, precipitacion, preceptacyon, praecipitation < O.F. precipitation < Lat. praecipitationem ‘act or fact of falling headlong, haste’ < praecipitare ‘to throw or dive headlong; be hasty’ < praeceps ‘steep, headlong, headfirst’ < prae ‘before, forth’ + caput ‘head’ < suhpuht < kaput- < Tamil kappu