-abilis

By rebracketing of words such as amābilis (which comes from amāre, amō), where -ā- is part of the stem of a first conjugation verb. The word habilis (“proper, apt”) is sometimes incorrectly stated as being the origin of the suffix, but instead came from earlier *habibilis, from habeō + -ibilis, and was reduced by haplology.

-ābilis (neuter -ābile); third-declension two-termination suffix

1. -able; able or worthy to be.

   ‎exitium + ‎-abilis → ‎exitiābilis

   ‎ratiō + ‎-abilis → ‎ratiōnābilis

   ‎amīcus + ‎-abilis → ‎amīcābilis

   ‎capiō + ‎-abilis → ‎capābilis

   ‎perniciēs + ‎-abilis → ‎perniciābilis

Third-declension two-termination adjective.