What is the meaning of -ca?

Form of -cə after the vowels A / I / O / U.

Suffix indicating the singular plusperfect indicative of verbs.

Creates masculine concrete nouns (including proper nouns) from adjectives, verbs, or other nouns, usually typifying a condition or state, or characterising a diminutive aspect.

forms agent nouns

forms agent nouns

Added to a noun or a proper noun to form a diminutive.

forms agent nouns

inflection of -cus:

1. nominative/vocative feminine singular
2. nominative/accusative/vocative neuter plural

nominative/vocative feminine singular

nominative/accusative/vocative neuter plural

ablative feminine singular of -cus

nominative/accusative/vocative plural of -cum

forms agent nouns

forms feminine nouns

suffix appended to words to create a feminine noun, usually a diminutive form expressing endearment

Forms agent nouns

Form of -ce after the vowels A / I / O / U.

Source: wiktionary.org