An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

To express dissatisfaction, pain, uneasiness, censure, resentment, or grief; find fault (Dictionary.com).

M.E. compleinen, from O.Fr. complaindre "to lament" from V.L. *complangere, originally "to beat the breast," from L. → com- an intensive prefix + plangere "to strike, beat the breast."

Mid.Pers. garz- "to weep, lament," garzišn "complaint;" Mod.Pers. geristan, geryidan "to weep," gelé "gripe, complaint, lamentation;" Kurd (Kurm.) girižin/giriž- "to be grumpy, growl;" Av. gərəz- "to lament, weep;" cf. Skt. grah "to complain;" Proto-Ir. *garz- "to lament, weep."

An expression of discontent, regret, pain, censure, resentment, or grief; lament; faultfinding (Dictionary.com).

M.E. compleynte, from O.Fr. complainte "complaint, lament," noun from complaindre "to lament," → complain.

Verbal noun of garzidan, → complain.

1) To make plain or clear; to render understandable or intelligible.
2) To make clear the cause or reason of; to account for.
3) To assign a meaning to; → interpret.

From L. explanare "to make level, smooth out; make clear," from → ex- "out" + planus "flat; clear."

Ostâhidan, literally "to unfold, spread out" (on the model of Fr. expliquer, Sp. explicar, from L. → ex- "out" + plicare "to lay, fold, twist," from PIE base *plek- "to plait, twist;" cf. Gk. plekein "to plait," L. plectere "to plait, braid, intertwine," O.C.S. plesti "to braid, plait, twist," Goth. flahta "braid"), from os- "out," → ex- + tâh "fold, plait, ply;" Mid.Pers. tâg "piece, part" + -idan infinitive suffix.

An extent of flat land not noticeably diversified with mountains, hills, or valleys.

M.E. from O.Fr. plain, from L. planum "level ground, plain."

Dašt, from Mid.Pers. dašt "plain, open ground."