Where does “siphonogamy” come from?

siphonogamy (English) comes from English -gamy, from Ancient Greek -γαμία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

siphonogamy (English): reproduction via pollen tubes

Definitions

reproduction via pollen tubes

Ancestry of “siphonogamy”, step by step

Step	Language	Word	Meaning
1	English	-gamy	Used to form nouns describing forms of marriage;...
2	Ancient Greek	-γαμία	—
3	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
4	Proto-Indo-European	-íh₂	—
5	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

Every word from Proto-Indo-European -h₂ →Every word from Ancient Greek -ῐ́ᾱ →Every word from English -gamy →