principialis
Could not find principiali in Logeion dictionaries.
principiali Adjective: neuter ablative singular, Adjective: masculine dative singular, Adjective: feminine dative singular, Adjective: neuter dative singular, Adjective: feminine ablative singular, Adjective: masculine ablative singular of principialis
princĭpĭālis, e, adj. [principium],
- that is from the beginning, original (poet.): tempus, Lucr. 5, 246: levor, id. 2, 423.
prīncipiālis, e (principium), anfänglich, ursprünglich, Lucr. 2, 423 u.a.
prīncĭpĭālis, (15) e, primitif, originaire : Lucr. 2, 423 ; 5, 246.