An Etymological Dictionary of Astronomy and Astrophysics

1a) Relating to a particular instance or object, as opposed to → general.

1b) Relating to or characteristic of things capable of being perceived by the senses, as opposed to → abstractions.

1c) Formed by the coalescence of particles; condensed; solid.

2a) To form into a mass by coalescence of particles; render solid.
→ concretion.

2b) To make real, tangible, or particular.

Etymology (EN): M.E. concret, from L. concretus “condensed, hardened, thick, stiff, clotted,” p.p. of concrescere “to grow together,” from → com- “together” + crescere “to grow,” cognate with Pers. korré
“foal, colt,” korr “son, boy,” → crescent.

Etymology (PE): Ambas, a variant of anbast in several dialects (e.g. Tabari) “dense, thick;” Mid.Pers. hambast “compact, tied together,” from ham- “together,” → com- + bast p.p.
of bastan “to clot, congeal; to bind,” Av./O.Pers. band- “to bind, fetter,” basta- “bound, tied,” Skt. bandh- “to bind, tie, fasten,” PIE *bhendh- “to bind,” cf. Ger. binden, E. bind.
Basudani “tangible,” from basudan “to touch,” variant pasâvidan, ultimately from Proto-Ir. *pra-sau-, from *sau- “to rub; whet; wear;” cf. sudan, sâyidan “to rub,” sân “whetstone,” variants fasân, afsân, awsân; Mid.Pers. sūdan “to rub;” Khotanese sauy- “to rub;” Sogd. ps’w “to rub;” Choresmian bs’w “to rub off, polish;” Skt. sā- “to sharpen, whet.”