fīrmus adj. with comp. and sup. 3 FER-, strong, steadfast, stable, enduring, powerful: rami, Cs.: robora, V.: firmissimi populi, Cs.: firmissima vina, V.: mihi placebat, si firmior esses, etc.: parum, H.: area firma templis sustinendis, L.: adversis, Ta.

—Fig., firm, fast, constant, steadfast, immovable, trusty, lasting, strong, true, faithful: nuptiae, T.: gener, T.: copiae: concordi populo nihil esse firmius: fundamenta defensionis firmissima: spes: firmior candidatus, with better prospects: litterae, trustworthy: vir in susceptā causā tirmissimus: firmissimus irā, O.: pectus, V.: (consolatio) ad veritatem firmissima, most effectual: exercitus ad bellum, L.: contra Metellum, S.: fundus nec pascere firmus, fit, H.