-iva

From Ido -iva, ultimately from Latin -īvus.

-iva

1. (nonstandard, neologism) capable of, that can (do)

   ‎konfuzi (“to confuse”) + ‎-iva → ‎konfuziva (“confusing”)

   ‎produkti (“to produce”) + ‎-iva → ‎produktiva (“productive”)

   ‎selekti (“to select”) + ‎-iva → ‎selektiva (“selective”)

Originally intended to be the active counterpart to the passive -ebla, -iva remains uncommon in modern use, and the words containing the suffix are often considered standalone roots.

• -iga (agentive suffix)

Borrowed from English -ive, French -if, German -iv, Italian -ivo, Russian -и́вный (-ívnyj), Spanish -ivo.

-iva

1. capable of doing, can, able to

   ‎instruktar (“to instruct”) + ‎-iva → ‎instruktiva (“instructive”)

   ‎responsar (“to be responsible”) + ‎-iva → ‎responsiva (“responsible”)

   ‎sugestar (“to suggest”) + ‎-iva → ‎sugestiva (“suggestive”)

• Progreso II (in Ido), 1909–1910, page 743

-iva (non-lemma form of verb-forming suffix)

1. used with a stem to form the third-person singular imperfect of regular -ire verbs

• -avi, avi, vai, via

-īva

1. inflection of -īvus:
   1. nominative/vocative/ablative feminine singular
   2. nominative/accusative/vocative neuter plural

-iva f

1. feminine singular of -ivo