filius

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Latin[edit]

Etymology[edit]

PIE root
*dʰeh₁(y)-

From Old Latin fīlios, from Proto-Indo-European *dʰeh₁y-li-os ‎(sucker) (compare Faliscan hileo ‎(son)), a derivation from the verbal root *dʰeh₁(y)- ‎(to suck). Related to fēmina, fellō, fētus, Old English delu ‎(nipple, teat), dēon ‎(to suck, suckle), Old Armenian դալ ‎(dal). More at doe.

Pronunciation[edit]

Noun[edit]

fīlius m ‎(genitive fīliī); second declension

  1. a son
    Ubi est noster filius?
    Where is our son?
  2. (by extension) any male descendant
  3. (in the plural) children

Inflection[edit]

Second declension.

Case Singular Plural
nominative fīlius fīliī
genitive fīliī
fīlī1
fīliōrum
dative fīliō fīliīs
accusative fīlium fīliōs
ablative fīliō fīliīs
vocative fīlī fīliī

1Found in older Latin (until the Augustan Age).

Note: Also vocative singular filie did appear.

Synonyms[edit]

Derived terms[edit]

Related terms[edit]

Descendants[edit]