What is the meaning of -is?

Used to form the superlative of adjectives and adverbs.

Forms causative verbs

alternative form of -yssh

alternative form of -esse

alternative form of -es.

Used to form nouns from adjectives, verbs and other nouns

Used to form diminutives: -ie

indicates a sharp of a note

indicates the sharp of a note; ♯

ending of past tense in verbs, e.g. ami to love, ŝi amis she loved.

Derives nouns.

Derives forms of nouns used in compounds.

-er, -ie; a suffix used to form nouns and proper nouns from place names, common nouns and adjectives; gives a familiar nuance to the original word; the original word is often truncated in the process.

sharp, ♯

forms the first-person singular present indicative of -ir verbs

forms the second-person singular present indicative of -ir verbs

forms the first-person singular past historic of -ir verbs

forms the second-person singular past historic of -ir verbs

forms the first-person singular past historic of -re verbs

forms the second-person singular past historic of -re verbs

noun-forming suffix, generally found attached to verbs

adjective-forming suffix, generally found attached to verbs

sharp, ♯

Added to a proper noun to form a shortened diminutive name.

desinence of the past tense in verbs

-ic

-ical

-ist

-ish, -ese

inflection of -eas:

1. vocative/genitive singular
2. nominative/dative plural

vocative/genitive singular

nominative/dative plural

derives compound adjectives with the sense "having (noun)"

found in borrowings from Greek, suffixed to the root of masculine nouns, forms feminine nouns of the third declension

1. -id (female equivalent or descendant)
2. -id (epic poem)
3. -id (meteor)

-id (female equivalent or descendant)

-id (epic poem)

-id (meteor)

dative/ablative masculine/feminine/neuter plural of -us

dative/ablative plural of -a

second-person singular present active indicative of -ō

second-person singular sigmatic aorist active subjunctive of -ō

genitive singular of -s

-ical; -ic.

-ist.

-ese.

Used to form the second person plural form of third-conjugation verbs.

Suffix that gives a familiar, and to some extent a diminutive nuance, when combined with a word; common with both nouns and adjectives; commonly used for place names, institutions and persons in their professional role, occasionally clipped: Medis, Frälsis, dagis, vaktis; compare English -y, -ie.

Similar to 1 in ad hoc combinations: pankis, sötis, snuskis; compare -ie.

Source: wiktionary.org