adelpho-, adelph-, -adelphia, -adelphous +

(Greek: brother)

monadelphous (adjective) (not comparable)
In botany, a reference to stamens having the filaments united so as to form one bundle: Some legumes are considered to be monadelphous having the filaments combined into one tubelike group.
patradelphy (s) (noun), patradelphies (pl)
The brother of a father; an uncle on the father's side: Judy's patradelphy was her dad's only sibling and lived in Canada.
pentadelphous (adjective) (not comparable)
In botany, a reference to stamens that are united by the filaments in five bundles: Pentadelphous flowers can be exemplified by the ones of the linden or lime tree.
Philadelphia (proper noun)
1. An ancient city of Asia Minor northeast of the Dead Sea in modern-day Jordan: As the chief city of the Ammonites, it was enlarged and embellished by Ptolemy II Philadelphus (285-246 B.C.) and named in honor of him. Amman, the capital of Jordan, is now on the site.
2. The largest city of Pennsylvania, in the southeast part of the state on the Delaware River; City of Brotherly Love: Philadelphia was founded as a Quaker colony by William Penn in 1681 on the site of an earlier Swedish settlement.

The First and Second Continental Congresses (1774 and 1775-1776) and the Constitutional Convention (1787) met in the city, which served as the capital of the United States from 1790 to 1800.

philadelphus (s) (noun), philadelphuses (pl)
One of the genus Philadelphus of shrubs; mock orange: A philadelphus is a deciduous ornamental bush of the family Hydrangeaceae, and likes an organically enriched, moist, well-draining soil and indirect sunlight.

A philadelphus has white sweet scented flowers which grow either as a single flower or in clusters or bunches and thrives best in temperate regions.

philadelphy (s) (noun) (no pl)
Brotherly love: Tom's and Mary's two sons were twins and spent a lot of time together playing, learning for school, and having the same friends. Their philadelphy was quite admired by all who knew them.
Polyadelphia (pl) (noun)
In botany, plants whose flowers have the stamens united in three or more bundles: The 18th class of the Linnean system of plants, known as Polyadelphia, includes the lime tree with the fruit termed citrus limonum.
polyadelphous (adjective) (not comparable)
In botany, referring to plants with stamens joined by their filaments into a number of clusters: Polyadelphous stamens or anthers are found in citrus fruits, like the lemon.
synadelphus (s) (noun), synadelphuses (pl)
Conjoined twins with a single head and partially united trunk: A synadelphus is a deformed fetus with four upper and four lower limbs.
triadelphous (adjective) (not comparable)
In botany, a reference to stamens that are united by their filaments into three bundles: The triadelphous flowers of seed plants have their stamens coalescent in three sets. The androecium is considered to be triadelphous.