Word: Lagrangian
Part of speech: Adjective
Syllables: la
gran
gi
an
Definition: of or relating to Joseph Louis Lagrange
Morphemes:
Affix: Lagrange
Language: en
PoS: Proper noun
Meaning: Proper noun~ A  surname, from French​.
Affix: -ian
Language: en
PoS: Suffix
Meaning: From, related to, or like.
Etymology Compounds: Affix: -ius
Language: la
Decoded: -ius
PoS: Suffix
Meaning: forming adjectives from nouns
Affix: -ānus
Language: la
Decoded: -anus
PoS: Suffix
Meaning: Of or pertaining to; -ian; usually indicates a relationship of position, possession, or origin.