DH: (two syllables) (Biblical) [LN: ends in -son or -sen]
DW: (vintage) (virtue) [MN: a profession]
DD: (honours mother) (filler)
DD: (double first name) (French)
DS: (honours father) (surname)
DD/DS: (thematic with twin) (flower or plant) / (thematic with twin) (place)
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DH: (FN and MN after a famous person) [surname: a colour]
DW: as above
DS/DS: (not related to twin's name) (word) / (not related to twin's name) (classic name)
--DS1's DH: (trendy spelling) (one-syllable) [LN: starts with Mc- or Mac- ]
--DS2's DW: (very unusual) (ends with -ia) [MN: a word]
---DS: (a nickname) (mythological)
---DD: (Shakespearean) (variety of Mary)
DD: (feminine version of a masculine name) (Italian)
--DH: (surname) (starts with C) [LN: starts with A)
---AD: (Japanese) (recently popular)
---AD: (Japanese) (old/vintage)
DD: (four syllables) (same initial as FN)
--Dbf: (starts with Q, Z, X, or Y) (filler) [LN: Spanish)
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DH: (variation of John) (unisex) [LN: long)
DW: as above
DD: (frilly) (doesn't end in a vowel)
--DH: (same initial as LN) (unusual Biblibal) [LN: a noun]
---DS/DS/DD: (ends with -us) (honours someone in the family) / (German) (in USA top 100) / (a colour) (ends with a -ee sound)
DD: (unusually spelt) (meaning/related to stars)
--Dbf: (preppy/"high class" name) (one-syllable) [LN: Italian]
DD: (invented) (classic)
--Dgf: (shows time of birth) (nature) [LN: double LN]
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DH: as above
exDW: (song title) (very unusual) [MN: French]
DW: (three letters) (Arabic) [MN: common first name]
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DH: (nature) (starts with R) [LN: patronymic]
DW: as above
DD: (Greek mythology) (saint's name)
--Dbf: (nickname) (place name) [LN: same as a famous person]
DS: (Roman mythology) (historical figure's name)
--Dgf: (very long) (Irish) [LN: one-syllable]
DD: (Norse mythology) (musician's name)
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DH: as above
DW: (starts with K) (ends with -belle or -bella) [MN: German]
DD: (cutesy name) (vintage)