Letters that make infinitesimal
s, a, e, f, l, n, m, t, i are letters that make 'infinitesimal'
Words within infinitesimal
IT, MA, te, si, ma, simal, SI, mA, infinite, finite, in, nit, fin, AL, IN, Al, Es, In, Ni, Si, Te, sima are words within 'infinitesimal'