ambar (3) noun ""breast" (chest), with stem in -s- or -r- (QL:30). The form ambar, translated "in bosom", occurs in MC:213 (this is "Qenya"). Note: if this word were to be adapted to LotR-style Quenya, we should probably have to read *ambas with stem ambar-; compare olos, olor- "dream" from a late source. However, the form ambos (q.v.) is less ambiguous and may be preferred.
Quenya
róma
shoulder
almo
noun. shoulder, back
ambar
breast
ambos
breast
ambos (ambost-) noun "breast" (chest). PE16:82
opto
noun. back
pontë
back, rear
pontë (ponti-) noun "back, rear" (QL:75)
catta
noun. back
A neologism for “back” coined by Paul Strack in 2022 specifically for Eldamo, based on Q. ca(ta) “behind, at back of place”. This word can refer to the back of body as well as the back of other things.
róma (3) noun "shoulder" (LT2:335; evidently obsoleted by # 1 and # 2 above.)