-ly
EN
[li] 
- Suffixe
- Used to form adjectives from nouns, the adjectives having the sense of "like or characteristic of what is denoted by the noun".
- friendly
- Used to form adjectives from nouns specifying time intervals, the adjectives having the sense of "occurring at such intervals".
- monthly, daily
- Used to form adverbs from adjectives.
- suddenly
- Used to form adjectives from nouns, the adjectives having the sense of "like or characteristic of what is denoted by the noun".
Definition of -ly in English Dictionary
- Partie du discours Hiérarchie
- Morphèmes
- Suffixes
- Suffixes Adjectif formation
- Suffixes Adverb formation
- Suffixes Adjectif formation
- Suffixes
- Morphèmes
Source: Wiktionnaire
Grammaticalement, ce mot "-ly" est un morphème, plus spécifiquement, un suffixe.